Yes, been playing MW3 on it since I got it back in April. Driving it with a liquid cooled 6900XTX mostly getting 100+Hz at full native res.
How are you finding it?
I've seen some reviews say it's "not great" for gaming with a bit of ghosting etc but I'm wondering if that's just versus the latest and greatest gaming-focused screens.
I'm using an old Alienware 34" which is only 120Hz and doesn't have the response of the latest panels but I find that fine so wondering if the Dell would be broadly similar.