I have three BRB's, 1.1 adults and 1.0 who is about 18 months old. The adults are both just shy of six feet, and the female is thicker than the male. None of them are at all nippy, though youngsters can be until they get used to being handled. Ours are all curious and much more 'social' than the BP's. The hardest part about keeping them is maintaining that 80% or higher humidity (90% for the very young), so an appropriate enclosure is vital - don't even consider a tank. Also they're less tolerant of high heat, with temperatures over 86*F being deadly long term if they can't move away from it. I keep my hot side at 84*F and the cool side at 75*F and I very rarely see mine on the hot side.