Imaginer, the buttons aren't very intuitive, but the controls overall are good once you get used to them. I can't comment on the battery life since I usually use it in my car plugged into the lighter. IMO, the construction is very nice, and the form factor is great. If you don't have the $$$ to spend on something like an iPod, this is a VERY good player. It's significantly above those cheap $30 CD-MP3 players in many aspects.