Just replaced my 17 year old kitchenaid with this GE. It looks great. I was reluctant about that knob you turn for almost everything but it's not that bad.
We've only used the microwave at this point and it works well.
I do wish I could choose my own time and not the 15 second increments.

I would add that the owners owner's manual needs lots of improving. There is basically no information in it.
What would be helpful is much more info on how to cook, what is included with the oven ie, pans, trays etc. There is an internal thermometer but it doesn't explain where in the oven it goes or how to use it.
There is very little detail about convection cooking in both the microwave and oven. There are no videos about using most of the features.