What drew me here after my google search was a mention that if you got a piece you didn't like from HairApparent, you could exchange it for a TopLace piece.
I thought that was a pretty bold offer, and if I'm honest, open to abuse because its a way of seeing & comparing both companies products but only making one purchase.
As I said, the discussion threads I was reading were pretty old, so I don't know if that offer still stands?