Welcome to FRF!!!
i own a 23SS. what will you be pulling with and how many will be staying in it?
the 21SS has great amount of floorspace but the 23SS has kitchen counterspace and lots more interior storage.
if you have more than a family of 4, you may want to look at a 3-bed hybrid, since it would mean making up the sofa or dinette each nite.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC