I had high expectations on it, but was disappointed. Check Tom's review: poor performance in most games when compared to same price Intel CPUs.
About games using 6 cores, sit and wait...
If you use heavy multithreaded apps, however, it could be the way to go.
Ok first of all, it does not have 'poor performance in most games'.
Look at the results. It's poor in Crysis for some unknown reason, I'll give you that. Then with Left4Dead it's got the same scores in the majority of tests (sometimes scoring higher on minimum fps) - basically 1fps amongst all the cpu's there.
It 'wins' Call of Duty MW2 by the same margin it 'loses' in Crysis, ie by a couple of fps and in Dirt 2 it performs identically.
You must realise that the two top intels here are the ~$1000 chips. This is not a bad gaming chip, it's one of the best gaming chips money can buy but if you are *just* going to game then it might not be the best choice.