Absolutely LOVE this oven.  When we remodeled our kitchen, my biggest requirement was a double oven.  I thought I would have to settle with a range in order to achieve this since I didn't want two full size ovens in my small kitchen. My husband was set on keeping the wall oven so I was ecstatic when I found this model.  We've had it installed for a little over a month with no issues.  The racks were hard to move at first but after reading the manual I greased it with vegetable oil and it is very easy to move positions now.  The air fryer works great - I did purchase an air fryer basket to use for air frying though.  The ovens are definitely smaller than what you would get with a free standing range but that hasn't been an issue for me.
One thing to note if you are on the shorter side.  I'm 5'4" and have no issues but could see there being an issue safely accessing the upper oven if I were any shorter. 
All in all great oven!