We have a open range Roamer 310bhs. It has the center island, and we have to run the slide out to get to the fridge and the bathroom. Is it a little bit of a hassle, compared to my in laws class C....yes. But I will take the added room when we are camping any day. I don't mind rest stop restrooms,the wife is different, I have to run the slide out 2 ft to gain access to the restroom, no big deal. But hen again we are not full timers, if we were that might change my stance.
As far as length and weight, you will want a bigger TV for sure. Granted our unit is 11,500 gvwr, but it is 37'3" overall and even with my 2012 F250 psd you know it's back there. That trailer will tax the life out of your suburban.