If you’re looking for a convection oven for baking macarons/cookies then this oven is for youI’ve been on the market for a countertop convec. Oven for a while and just bit the bullet and ordered this one. To my surprise it’s worked pretty wellIt took a while for me to configure the temperature changes but I’ve figured out if you bake your macs at 250F then they’ll rise with no issues. In a regular oven I bake at 275-285, so keep in mind to go a bit lower than your average mac temp.As for the sizing you can fit half sheet pans and they fit perfectly in the grooves, although I opted for UNOX trays which are more flat & will give you perfect macs every single time. (Only used 3 trays at once)Please note I haven’t went higher than 350F so I can’t comment on whether it’ll bakes cakes as well but I’m sure it does! If you can bake macs then you can pretty much bake everything else. Hope this helps!