It works properly for sims of different body types (fat/fit/whatever) and the hair recolouring options (roots/main/highlights/tip) work properly as well, though they may not look amazing in all colour options due to the way this hair is constructed. You can just put it in your game and play - no fuss, no muss, no needing to choose whether you like another hair better. This is a true custom hair and doesn't replace anything! It shows up as a new item in CAS to choose, and does not require any Store hair or anything like that to work.
In the tradition of my TS2 hairs, I'm proud to present my TS2 Cherub hair, converted for use in TS3! It was my first TS2 hair so it seemed fitting.