We had 3 iMuz C700 MP3 players in our house between two of us. I got mine first and used it for a few weeks without any problems. During this time my boyfriend decided to get one for himself since it was so good, and just after his arrived, the USB port broke down on mine.
His was working perfectly, so assuming mine was a fluke I sent it back and got a replacement, and while I was waiting for the replacement to be delivered, the hard drive died on his, so he's had to send his back for a refund.

My replacement was delivered shortly after and lasted a total of 71 hours before the battery died completely, and the unit wouldn't even switch on for me.

All of this was in the space of 6 weeks.

I won't be buying an iMuz again.

I bought the iMuz C700 MP3 player as much for the voice recording and storage facilities, as for the MP3 player element, and it has not disappointed. I have used it constantly for 2-3 months now, and it has only frozen up once, it is that reliable. The downside is definitely the menu system. The keys change function depending on which menu you are in, and it all gets very confusing. The buttons for moving through song lists seem to have been set back to front, and so you have to concentrate. I was particularly impressed with the recording quality. I produce a regular pod-cast with this unit, and so if you want to hear what it can do, just go to www.cleverlittlepod.com. All shows so far have been recorded with it.

Overall, I'd recommend it.