Myi, I was reading the star k website gusidelems and also was surprised about it saying there u could turn temp up and down on yomtov.
My reply to (sorry not sure who) about not using it to cook shabos was referring to "there may be more issues on shabos"
Anyway I chose the GE700 model and bh has convection and self clean and shabos mode and cost a discounted 799. I didnt go for the upgrade with 3rd shelf and warming drawer. Who knows.in this matzav whars going to be with economy!