I have and will only Tefal buy, too much trouble with Silit ceramic pans had (do not like olive oil) and would never buy a Silit, but the pots are class of Silit, but the pans nöööööö :-(
I would recommend the Gourmet Series and the Jamie Oliver (I also have a) of Tefal highly recommend, no matter what condition for an oil, remain the non-stick properties, everything is just right.