"Dry Wax Circles" v. Parchment

I’ve never used “dry wax” and don’t know what it really means. I’m considering purchasing a case of these so I can stop cutting endless circles out of my parchment sheets, but don’t want to have gross, waxy-tasting cakes. Does anyone use them? Do they impart a taste to the cakes like regular waxed paper would? Oh, yeah: do they work?