I have a pair of Angolans, and agree with everything Zina said - right down to the tail wagging lol
They really are like if a Carpet, a BP, and a Common Boa got together into one snake as far personality. My female was a little snappy as a baby and will sometimes even be 'moody', especially when I've got her out while she's hungry, but she's really a sweetheart. The male was more bluff than anything else, now he's just a puppy. Literally the most gentle and trusting snake I have. Both are inquisitive and seem very visually oriented.
Thanks to their harsher environment (the two species are separated by ~1000 miles), they're much more forgiving in terms of temperature and humidity than Ball Pythons, and don't have any of the BP eating weirdness. I mistake of feeding my female like a Ball for about her first three years. Year one and a half would have been fine in hindsight, but year three she exploded into obesity. It's taken me two years to get her down to breeding condition. They are very, very efficient.
Will be pairing this year, hopefully they go. . . . There's actually already a plan for clutch if they do. Fingers crossed.