Can't think of a con really.
I have 2 IJ's and they are both great snakes. They are usually out, draped over something or just hanging out on a ledge or hide top. They are curious and like to come out and be handled (well...who knows what they really like) and explore. They are good eaters (one was a PITA going from mice to rats but she's good now) and are easy to care for.
Yup, get one and end up with more!