I recently spent 13 months in my TT at a RV Park. I stayed in it during the week and then went home on the weekends. My TT camps at 29', as it has a rear queen slide.
It had enough room for my stuff, but it would get crowded when my wife and daughter came up and stayed with me.
It worked really well as a studio apartment for 1 person. For more than 1, I would want a longer 5er with storage capacity underneath.