Welcome to the forum. I bought a 2008 19T last fall. It weighs 3100lb empty so it tows great even without a weight distribution hitch. My F150 V8 Ford truck gets 10 mpg with my 5000lb 27' Crossroads and 15mpg with my Hi-Lo.
The microwave sits on top of the fridge and stores under the dinette when top
We took it to Amarillo Tx for Thanksgiving and it was comfortable even though it was cold outside.
You have to really keep stuff put away otherwise you will be tripping over it cause room is tight. But the advantages of easy towing and parking make me want to take it out more than the bigger travel trailer.
Hope you buy the 15T and enjoy it.