Had a 19' TT for two years and never really felt "comfortable" in it. Probably just me but it just always seemed a bigger PIA than it was worth. The DW REALLY liked the Lance 855S, but I didn't feel comfortable with the reported actual wet weight so we didn't go that way (I love my wife!). We ended up with a Northern Lite that fit our short bed and we both love it. Didn't do any mods to the truck other than a set of Stable Loads that were recommended here.
I enjoy the ease of moving around and parking when in towns. Not being in a hurry to get anywhere the driving and getting used to the feel was easy. The fuel mileage is better by about 2 MPG in my case. It is much easier to find a place to park for the night when I am tired of driving. My wife has actually driven our rig and while it is not her idea of fun I don't have to fight with her to give me a break if we are on a long run. I could not get her to drive with the TT hooked up.
We have literally all of the comforts of home we had in the TT. Our fridge/freezer is larger. The bed is larger and more comfortable. The usable storage has been very adequate for the two of us. The insulation is much better than our TT, we do not hear a thing that is outside unlike our TT where we could usually hear many conversations around the campground (we are early birds). If we are in a CG for more than two or three nights we usually drop the TC so we can run around. I can tow my tin boat now. The dry/wet bath deal is not an issue for either of us.
If money were no object we would still be in a T/C, it would just be one with a slide sitting on a 4500. Good Luck!