well it is not a great looking device and it is a little bulky, but in the flesh I think it looks ok, the build quality is better than most chinese players and the looks have definitely grown on me. The New GUI is very nice. Not every game runs on the GBA emulator perfectly but updates are frequent and certain games run very well. Mario kart and aladdin run perfectly at full speed. I have only tried a few more, and of course you have nes, snes, & neo geo too. SmartQ rate the video battery at 7-8 hrs, obviously I don't think it is as long as that, but it is still very good nevertheless, particularly considering most chinese device batteries are terrible. The battery has a high capacity of 2300mah and I have found it too be very good for a combination of music-games and video and also for extended video watching and game playing on their own.
heres a video of the new firmware in action:
YouTube - Smart Q T5 New Interface Firmware V2.0 Pre