I was hoping it would power through 6 to 8 inch high wet grass that accummulates under the 5 spruces I have - no such luck. It seems to have too much build up of grass on the guard, lack power and trim line strength to do that job. I have been using a 10" with the electric cord and heavier trim line and hope I wouldn't need to use it.

However, the cordless trimmer makes it a lot faster to do the trimming and easier to keep up with the 1/2 acre yard work. So maybe the dense grass problem won't occur.

The verdit is out on the auto feed as it seemed to chew up the .065 trim line very easily especially around tree bases. This makes the operator haver to exercise more care. However, the auto feeder seems to work flawlessly.

I haven't used the edger feature, nor would I as I have a lot of edging to do.

For normal trimming the CST1000 powers its way through. It sure beats lugging 100 to 150 feet of cord around.

One more thing. The unit handle was damaged in shipping. Two plastic mounting posts broke off inside the handle. The handle halfs, while not showing damage, would easily separate. The exterior screws that fasten the two halfs could not hold the halfs together. It appears that the problem is in the Black and Decker box as it does not seem to protect the handle from the weight of the battery.

Great Value (Rating: 4.00)
Review : I recently purchased this grass trimmer from Amazon.com. I wanted a cordless model so I did not have to bother with gas or lugging a plug around the yard. I received it very quickly and was able to pull it out of the box and have it ready for it's first charge in about 10 minutes.

I used it last night for the first time and was very happy with it. I needed it primarily to remove the grass/weed growth (that that our mower can't reach), that was climbing up the fence separating my and my neighbor's yards as well as the weeds that grow around our garage. It worked perfectly. I had some grass/weeds near the fences that was at least 12 inches in height and it blasted right through it. It never got stuck or jammed. I probably cleared about 150 -200 feet of fence that had grass and weeds climbing up.

I did try to use it on a section of dense pulpy weeds near a corner of our yard where the grass meets concrete. The weeds are very low to the ground and have very thick stems. It did not work so great on these but I think it is due to the thickness and density of the weed growth. I wound up just pulling them up out of the ground (this was even hard to do). But, since I bought it for purposes of removing the grass/growth along the fences on my property, it works wonderfully.

The only drawback is it does get heavy after using for a while, but the helper handle is a great plus. Since I don't need to use it for excessive lengths of time, that is something I can live with. I would recommend this trimmer.

AFS is a disappointment.. (Rating: 4.00)
Review : I really like going cordless and gasless with this trimmer, but the "auto feed" system is very poor. Most of the time the user actually only gets about three inches of trimming cord to use. Too bad they don't offer a "bump-feed" system, that would make it a great machine!

A very nice product. (Rating: 5.00)
Review : I have been using this trimmer for about six weeks and I'm happy with it. I had an inexpensive electric trimmer, but I wanted freedom from cords. At first I considered buying a gas trimmer until I realized that was ridiculous since I'd be using it to trim a property less than one-quarter acre. I also didn't like the fact that the gas trimmers all had wide cutting paths. That is an advantage only if you are cutting grass rather than just trimming grass around a wall, shrub, flower bed, pole etc. A comparably powered trimmer with a larger cutting path isn't going to trim grass any faster since you're really only using the tip of the line to cut the grass. This trimmer has a smaller cut path so you can trim in and around tight areas, and do so without accidentally cutting something you don't want cut (like flowers). I think the power of this model is very good but according to Consumer Report, some cordless trimmers aren't as powerful as electric models. If you are a power freak you probably will want a gas trimmer.

Black and Decker makes another cordless model (Grass Hog) with a 12" cutting path. Frankly, I think this (9-inch) model is a better choice because it operates at a higher rpm. That means the tip of the line is moving at a higher speed. Taking into account the circumference of a 12" and 9" circle as well as the rpm of both models (6,800 for the 12" and 11,800 for the 9"), I calculated the "tip speed" of this model at 316 mph while the 12" cordless model is only 243mph. Although I haven't used the 12" model I assume this one cuts better for that reason.

It also performs nicely as a light edger. Switching from trimming to edging takes just seconds. It's really a great feature. It's so convenient having an edger at hand that I edge much more than I used to.

One thing I don't like about the trimmer is the auto feed system. I don't like not being able to feed new line whenever I want. New line is fed only when the existing line has been considerably shortened from use. Also, when the line frays and splits (as it often does) you either have to wait until the auto feed kicks in or trim the line with scissors. I carry a small pair with me and occasionally cut the line when it gets frayed. You can probably also use nail clippers.

Cordless trimmers are heavier than electric models and some of the lighter gas models. They are better balanced (than electrics) though and more comfortable to use in that respect. The weight is near your hands as opposed to being at the front. I find it more comfortable to hold this trimmer than some of the lighter electric models I picked up in the stores.

Most of all, what makes this trimmer great is the fact that it's cordless. You just can't beat the convenience.

Shop no further, Amazon's price is excellent. I didn't get it any cheaper and I bought mine at a huge retailer who is known for great prices (you know who they are).

Pros

- cordless!
- well balanced
- smaller cutting path
is advantageous for trimming tight areas
- switches quickly to an edger

Cons

- Auto feed system
- weight

Don't do it! (Rating: 1.00)
Review : I would like to update my last review of this machine...

After less than a full season using this "toy" I now realize how cheap this thing is. I have spent more time "re-threading" the spool after the string wears down to nothing or more often than not, breaks off, than I have trimming. You only end up with about 3" of string during the lightest of trimming. And now the lower bearing in the motor is worn out. I guess I'll strip the battery out of it and trash the rest.
If you need to trim anything but the LIGHTEST of grasses, this machine is not of any value to you.
And, customer support from Black &Decker is nothing more than a bunch of form letters... and they are automatic and have nothing to do with your queries.
I was poised and ready to purchase their cordless mower, but with the experience I have had (or lack of) with their "customer support" and the quality of this product, I have purchased another brand.