I have 1.1 Sonorans, they are both very easy to handle and work with. With that said the female will be cranky on occasion, while the male will be flighty, trying to avoid being handled initially. They seem to be like any other locality of boa with individuals being just that. If you do decide to get a Sonoran make sure to talk with the seller and get one that has shown to be handleable.
This photo of my Sonorans is from 2 years ago, showing that even as little ones they are quite readily handled without any problem.
This is the male from earlier this year, so showing his size at 2 years old (and still readily handleable).