Does Anyone Play On An Ultra Wide 21:9 Monitor? Or Custom Res 2560x1080 On A Native 16:9 Screen?

I have been playing on 21:9 for a while now. The wider field of view is great. I play it using a custom resolution on my 50 inch Television set which has low input lag for a TV anyway (13MS INPUT LAG). I set it to 2560x1080 and put it in full screen in the Nvidia settings.

http://imgur.com/a/4wcBT

Here are some comparison pictures I made. If anyone has made the switch, do you like it more and has your performance increased in game? My performance has been worse but that is probably because I did not play for a while and came back to the game. I would think having the wider field of view would really help, especially in a tank or any other vehicle.