We also looked at the buller 31BHPR. Our concern is the following
1.) The bunk over the outside kitchen - No problem Weight limit 300#
2.) The Top bunk on the other side - fold down - had a weight rating of only 150#. A young adult can not use it. Also it is only 30 inches wide.
3.) The futon foam "bed" under the fold out is simply a foam cushion and will compress over time with them sitting on it. Plus fold in out to use it and then folding it up again - taking off linens seemed too much.
We were actually very disappointed in the weight capacity of the bunks overall across the board.
We are now looking at Bullet Premier 29BHPR. it has double bunks (no slide) but will accommodate an adult.