Found a werewolf, and he's a companion!

So far, looks like companions are basically like summons, but permanent and you can talk to them. They just follow you around and kill stuff. Aside from certain quests, you don't actually have to have them follow you. You can also use them as pack mules. Basically they work like they do in New Vegas.

Think I'll go solo as much as possible though. I like my AOEs, and those don't usually mix well with followers.