I think it's great too!
If you think you have the room and money sure why not? I live in an apt with two and would have more if I could, but can't. Since you live in an apt, do you have to notify the manager? And I don't want to sound like a sour puss but to rent an apt with 3 is going to be difficult, for me with 2 is really hard, but if you are up to it why not?