The AA TCON F seats are very similar to a standard Cirrus installation but the installation is not identical. The AA seats are a bit closer together, you can see this if you look a the gap at floor level that one might typically swing one's foot through as one enters the seat. It's a lot smaller gap.

It is still a very fine seat, certainly the best inside the USA. Service can also be very good, I took a JFK-LAX flight a year or so ago where the purser serving in F wouldn't have been out of place in CX F; best AA service ever.