I have a Boston and he is awesome!!

He is great with kids and people in general. Very active and friendly. Boston's tend to be protective of their family and home. He'll bark at people walking by our door and windows, but, if you open the door and let the person in, he'll be all kisses.

He loves soft toys (stuffed animals) and it's even more special if it makes some kinda squeaky, grunting noise. I rescued my Boston, and you can tell he was taken from his mom to early, he tends to suckle his toys (like a kid sucking his thumb). Tug is another one of his favorite games, bad for the teeth, but, hey he loves it.

My Boston doesn't hate other dogs, he just doesn't care about them. I've taken him out to play with my friends mini-schnauzers and he just doesn't care what they do. He's very into people and only shows concern for my husband, myself and any other humans in the park. I've talked to numerous Boston owners that say the same thing about theirs.
Bostons were breed to be companion animals for people. Remember, this is a man invented breed.

I would definetly (as a rule of thumb) research the breed before adopting/rescuing/breeding. Pug nosed dogs (the smashed face breeds) come with a unique set of health concerns. Boston's are very prone to catracts, I've heard of puppes even having them.