We have the Shadow Cruiser 280 QBS. It's 5600# dry and we currently pull it with an Expedition. No problem there.
We are a family of 5. My kids are 11, 9 and 5; but the boys are big for their ages and are already 5'3" and over 100#. The bunkhouse works for us and appears that it will for some time. The bunks on the side with the outside kitchen are stationary and the equal length. In July, my 5'11" nephew slept comfortably on the bunk. On the opposite wall there is a table and chairs that converts to a bed and a flip down bunk. The table and chairs can hold 3 middle school aged boys (ask me how I know) comfortably. The flip down bunk is somewhat more slim, but just as long as the other beds.
*The biggest advantage I have found is that the flip down bunk holds up to 210#. At the RV show this winter I noticed several high end model TT where the upper bunks were short and maxed out at 100#! You gonna put a toddler up there? Crazy. Kids grow fast and I have learned that we actually got really lucky. When we purchased the TT they were 8, 6, and 2 and little stick figures and we didn't worry about where they would/could fit. Now just 3 short years later, the kids have exploded in size and I'm grateful we fell into a camper with bunks that could support enough weight and that are long enough.
The U-shaped dinette was a must for me while choosing a TT. Sure, all 5 of us can fit, but it's tight. And somebody always wants to get out for seconds and they are stuck in the middle so everyone has to shuffle out. So someone ends up sitting on the couch to eat, it's just easier. Honestly, we usually only eat breakfast inside.
Have fun choosing your TT. We have really enjoyed our Shadow Cruiser.
2017 Coachmen Catalina 323 BHDSCK
2018 Ford F150 FX4
3 growing kids and 1 big dog