I have owned both a sunsetter Lxi and Now own a ‘12 response TXi. The TXi doesn’t handle chop well, lacks a lot of creature comforts of the Sunsetter, not as much freeboard, easily chili dips on even the smallest wakes if someone is in the bow, interior isn’t as plush… After 2 summers my wife has finally stopped pointing these things out.
I bought my SSLXI when I had a young family that wanted to boat all day, teach the kids to ski, wakeboard, and yes (gasp!) tube while allowing a great slalom wake for me. It is an awesome boat. Keep looking, they come up online but go very quickly so be prepared to move.