I love doing them. I've found that if you use the cheaper store brand tub frosting (I use Vons) for the outline, it peels of cleaner. I tried with Duncan Hines and some of it stuck to the waxed paper when I lifted it. I've also done them on parchment paper although it's not as transparent as waxed paper.
Hmm...that post sure has alot of pages! I've never used Bettercreme but I'm sure it's almost the same as Pastry Pride. I know it's more expensive than PP, and if you choose to flavor it, I doubt there would be much of a difference. I'm going to buy some Bettercreme and check it out.
I frost all my cake with PP. I've used it with buttercream accents and also put frozen buttercream transfers on it with no problems at all. I've heard that if you put fondant pieces on it they will melt. Never tried it though. I've use gumpaste decorations on PP but the gumpaste was completely dry before placing on the PP. You can refridgerate it for 24 hrs but I would make sure it was covered. PP tends to get a "stale" crust on it. I have refridgerated uncovered cakes for...
For all of you that own the printer, is it true that if you don't use it often the ink dries up or the cartridges get "gummy"? I read that somewhere and I'd like to know if that has ever happened to anyone.