ORIGINAL: K9 Cop
This is my first year to use one and I love it. It's very sturdy and would easily seat two adults comfortably. I'm 6'4" / 230 lbs and I could easily hunt with another person equal to my size. I agree with KoBear though, not something you would want to move very often.
Do you have the Cabelas Pine Ridge 2-person stand? Is it 15 feet high to the base of the stand or to the shooting rail?