I had a Q10 and did some decent recordings with it, but I will say it made my mixing life a lot harder than it should have. It has muddy lows and cut off highs that make mixing multiple tracks pretty hard. I just got done mixing my last project that was tracked through it and I still wish I would have been able to use something else. The A/d conversion does something pretty unnatural to the sound. I say its the AD because I used an RNP for the majority of what I did.
So if you record acoustic guitars and voice, and might occasionally do srums than give it a shot. However, if you are looking to do some serious recording, I would pass on the Q10 and get something else.
Beez