Punches well above it's weight.
I bought this speaker to use with my mp3 player/phone so I can listen to music in the park with friends during the nice weather, rather than carry large speakers with us or rely on the tinny sound of phone speakers.
The sound quality is very good, and it also goes quite loud--much louder then I would ever need! The bass is quite strong, and can vibrate some surfaces. The build quality is very high--I expect it to survive the occasional knock in transit.
In the box you get a USB charger, with a 3.5mm audio jack to you can charge it from your computer and listen to music. You also receive a carry pouch.
The only negative was the size of the box play.com sent it in, massively oversized.