The dog in the photo is a setter.
Both springers and setters often have a great off-switch--blow the place up in the field, but settle great int he house. They are both amazing hunting dogs. Both can be great with kids too. At the same time, both breeds can also be a nightmare. You can make some breed generalizations, but you really have to see for yourself. Assuming both breeds actually come from a hunting line (which is a legit question in both breeds. the dog in the photo LOOKS like a field bred setter, not a show bred though) my main concern would be if you and your family and lifestyle jive with the dog. A springer is bred to be a close working dog. Even an "out of control" springer stays very close if you are comparing to an aa setter. Wheras a setter ranges what may seem like WAAAAY far away from you even when under control, and if out of control can be in the next county literally in seconds. They are simply more independent dogs, and no amount of training will change that--so simple things like letting a dog out to pee in the morning can look very different depending on the breed and your setup. You have to go and meet the dog, see how it settles in the house, if its house trained, etc, and also see how it hunts, and then decide if thats what you want. If you havent ever hunted with a decent flushing dog and a decent pointing dog I would highly encourage you to actually go and watch some dogs in action, or at a minimum watch some youtube videos, just to see what it looks like to get a real "feel" for what you are talking about. Both very cool, both very effective, but wildly different.
regarding going from outdoor living to indoor: There are a wide range of situations that might be described that way, everything from very well trained and mannered dogs, all the way through half-feral dogs that have never set foot inside and havent a clue about indoor manners, house-training, etc. Plenty of dogs that live in a kennel do great inside, you just cant count on it. Go meet the dog and see. ask if its house trained, manners, etc. If this is a breeder that is either no longer breeding, or kept some dogs and isnt planning to breed those particular dogs, this could be a great situation, or it could be a tough one. You have to just go and find out. Ask about any health issues, ask about what training they have (both general OB and hunting), and try to meet the dog and get a feel for what that actually means.