It's got a fan base though, people working on pushing out the updates for it. I've got one myself and have a no problems with it. Could never justify spending £400 on a tablet.
ROMs here:
http://www.arctablet.com/blog/forum/cube-u30gt2/
Could never justify anything over £200 when it gets used for Facebook and games.
***EDIT***
Would agree though, if anything went wrong you're kind of fucked trying to get a repair or replacement from China. That shit could take months I'm sure lol. But that's the risk you take buying from China. So far so good here though.