Look in the slide clip i've just posted in the players section, that was recorded with a Q3HD. And a few of my other videos.
I think they are great but they are all about the audio quality and ability to record band levels.
The video quality is so-so, pretty average in lower light but not bad in full daylight.
The lens is small so I doubt whether there's much point in it being HD, the digital information is probably much more than the optical information the lens can supply.
So yeah it's good but for £200 somebody should be able to make a camcorder with a decent glass optical lens with decent condenser mics. Zoom has filled a niche and I take mine everywhere but sometimes wish Sony would jump on the bandwagon so I could get video quality to mach the audio.