I was on the A321S Tuesday, SAT-DFW, seat 2F. Still had the "new plane" smell.
Decent IFE and controls, large seat back flap for magazines and blanket, standard mini and articulated seat armrest stowage tray.
Hard-ish seat, under seat storage blocked by vertical IFE box, slider type articulated seat with mobile winged headrest that's insufficient in maximum height for tall people. Not very comfortable for long flights.