We've only had our double oven/convection range for a little over a month & our countertops are still not in, so a little early to review.  This is my 3rd GE Profile double oven & by far it's the best.  Of course it's the newest, but since my first electric double oven in 2012, many improvements have been made.  It's just a heavier duty construction; easy to use; a delight to work with.  I haven't tried convection yet, using the griddle, or steam cleaning.  My only "complaints" are there is no hard copy manual & the control lockout only locks out the oven portion, not the burners.