For a hunting cabin or vacation (1-2 weeks), even that small one will do. I actually do like the one with the loft. Since I do dialysis, I don't have to get up and go pee in the middle of the night. (Or you could just bring the wide mouth Gatorade bottle up with you. Do note however that you can buy any flavour of Gatorade you wish except lemon-lime.)
We spend ten days in a camper that "sleeps 7" when we go deer hunting. I'm at one end, Robert at the other. We always seems to be in each other's way. Which is one other thing that would drive me nuts about a small or tiny house. If you ever watch the videos where they "demonstrate" where everything is, notice that it's all immaculately clean and organized. Trust me, after 3 days in the camper, it's not so clean and organized. And you have move, fold, twist, bend, turn, close and other manipulate six or seven different things to get to the one thing you wanted. I'm sure at some point you'll go "I need a pen." and then turn and look and realize that not only are there the eight regular steps you'd have to go through to open the drawer with the pen in it, but because you didn't clean, organize, put away the dishes, you now have to wash, dry and put them away before you even begin on the process for getting to the drawer.