I do not have a convection oven so I can’t comment on that. I just have a basic electric white Frigidaire stove. The most important part for me was actual dials for turning on the burners, oven etc. The only thing electronic on it is the clock and guess what isn’t working? Yep, the clock but since everything else is manual, I am good.
As for cleaning, I just spray oven cleaner in and leave it over night and wipe out the next day. I keep a aluminum oven pan in the bottom so I don’t have to clean the oven often.