I have the Technique hard anodized set myself, and I'm continually adding to it. I love this stuff! Each of the pans do have a concave circular pattern to them, but I can't imagine that it would be unsafe for a ceramic cooktop. My mother has a smooth cooktop, not sure if it's ceramic, because I've never wanted one enough to research it....not sure if they make smooth cooktops out of anything else! But I got her the basic set last Christmas and she loves it too!
Every time I go into a kitchen store and pick up a $200 AllClad skillet I do a little happy dance knowing I got a very good set of hard anodized cookware and spent less than that on my basic set. I just bought the square skillet and square grill pan set a few months ago and those are even more fun to use! Honestly, the AllClad might be better....but I don't care to find out for sure, since I'm perfectly happy with this set.
You can always call Customer Service at QVC and ask! The number is on their website! Good luck!
~ "The right shoe can change your life...."- Cinderella ~