Invertor works well, but keep in mind 300Watts of battery power is a small bucket of power, don't try any inductive loads. I managed to burn out the invertor. Xantrax honored the warantee and replace the unit no questions asked. Refreshing change after dealing with Sony's warantee department!

Highly recommended

Good overall; takes a long time to charge (Rating: 4.00)
Review : Overall, I am pleased with this product. However, I ran into the same issues addressed by Ron Campbell in his review. Although the manual states it takes about 40 hours to recharge using the AC adapter (plus an additional 15 hours if you don't see the green light after 40 hours), it took more like 72 hours before I got the green light indicating full charge. The owner's manual states that longer charge times are indicative of less than 120 volts at the wall outlet. I find it hard to believe that my three-year-old house does not have 120 volts at the outlets, but I guess that is possible.

I bought this to use as an emergency jump-start unit and to add air to my tires after they are deflated for offroad travel. It seems to suit my needs. I would recommend this product, but be aware that the charge times may take twice as long as those stated by the manufacturer.