Thinskin is fine for daily wear using a weak adhesive such as G2BG. If you don't remove the piece nightly, you'll develop breakouts and the piece will shed quickly. Great as a back up piece.

Swiss is much more comfortable, realistic looking, and the direction of the knotting isn't quite as fixed as an injected piece. The maintenance is a PITA, but it's as close to a real head of hair as you'll come.