Pretty nice spec for the price, I guess it all depends on exactly what you need it for and how often your going to use it. I know some folk on here have bikes costing in the four figure bracket. I recently purchased a similar spec Specialized rock hopper pro for £600 it does the job perfectly. The shocks on the bike your looking at are actually better than mine.
Have you considered a 2nd hand one? £500 would buy you a decent 2011 high spec bike?
In short everything about that bike is Great apart from the name. If your not a name whore you will be fine with that bike