The Pampered Chef Pizza stone is the best stone I have every used.  I have 3 of them so that I always have 1 available as the others are being used.  After seasoning this stone, I never had 1 thing stick to it.  It would be very difficult to even burn something on the stones because it provides even heating.  They are so easy to use.  Just scrape them off and start using them again.

I would say the only drawback to the product is that you must always have a trivet to put under them or it will scratch your counter.  I always have trivets, so it's not a big deal to me.