How to take care of my Temptations Cookware so it doesn't crack

I started collecting Temptations Cookware but I'm a little confused about something. I have read the reviews about Temptations cracking in the oven and I want to avoid that. I know your suppose to put a cold Temptations baker with cold food in the oven and let the oven heat up with the cookware. How about when baking a cake and the cake box tells you to preheat oven first. If I have room temperature cake mix in a room temperature Temptations baker can I put it in a preheated oven with no problem? I want to take care of my Temptations properly especially since sometime I have to send it back to Qvc at least once before I get one that has a decent paint job, glazing, or chipped problem. I wish they would fix those problems already. Thank you everyone for your help.