Hi Tara and Tim
I think the best thing would be to go and look at them, either a trip to the factory or calling the factory and getting the names of some more or less local owners. These small trailers are not for everyone, find one of the smaller 19' class, and a larger 21 or fifth wheel to look over. Also look at conventional box trailers. If your husband is thinking a 35' double slide trailer with fireplace and big screen TV, and you are thinking cute cozy 19' fiberglass, someone isn't going to be happy.
Bathroom on the 21' is bigger then that on the 19 or 50.TA, which are the same. It's called a wet bath as the whole room is the shower.
There is quite a bit of difference between the 19 and the 21/5.0TA, space wise, so try and see both. A foot or 2 in length and a few inches in width make a big difference.