Well so far so good, only 2 very minor things bugging me. A couple of times the mouse pointer froze and I had to do a cold restart to get it going again, and when I boot into Windoze the BT Mighty Mouse doesn't kick in straight away (but that's a Windoze issue, I'll find a remedy somewhere).
Only played 2 games on it so far (FEAR and AVP2) as I haven't actually bought any in yonks, turned all of the settings up to max and the machine has taken them in it's stride 😀 This system is AWESOME.