We’ve been using the oven(s) for about a month.   We like many things about them.  They head up twice as fast as the Viking ovens we replaced. 
We’re still learning.  We fine the timer to be a bit of an issue.  It disappears and one has to keep pushing the clock in the lower right corner to see how much time is left.    The signal is very faint - so if one is in another part of the house it’s hard to hear.