Mine arrived from absolute music solutions and came with all the extras (UK)power addapter usb cable etc.
All you need is two AA batteries and you're up and running.
I did have an excellent Olympus voice recorder, but for live music this is streets ahead, because you can set the record volumes on the H2 but everything is fixed on a voice recoder and music is distorted at high and low pitch.
This unit is fairly straightforward to use once you get used to the duel function buttons.
The transfer to computer is slow by USB, I think it is only standard USB, but a card reader is the easy answer to that.
Also a small built in speaker would be nice for playback checking.Easy answer is a pair of small portable speakers or phones.
I gave 5 stars because the above two points are only personal niggles, the recorder performance is very good and I think you would have to pay serious money for any improvement you could notice.