The seat performed well... I think.
If it did, I was 2 seconds faster on the lead driver in my class. I've still only got the 3 point, so I moved the seat back a bit, pulled the belt tight and moved the seat forward. I'm sure a 5 point will be much better.
The cons... Going through a drive-thru. Better have your wallet out way in advance. Cell in your shorts pocket, forget about it until you get out.
I think it's very comfortable.