I LOVE the hair! TS3 hair was way to stringy for my liking. I really like how they are giving us a middle ground between an open and closed world with the option of universal aging. That is what definitely sold me. I gave TS3 up because I couldn't control everything that was going on and because of that, I felt limited to only one family. It was like playing an RPG which is not what I want in the Sims. I'm really hoping TS4 will let me micromanage as much as I do in TS2.