Purchased this unit as a replacement for another.  Microwave works well and heats up quickly. The only issue is that it takes so many clicks just to get it started.  What type of use (click), Time (click), heat (click), start (click). If I just want to heat something quickly, there isn't a button for that.  Haven't used the Convection part, but doesn't seem hard.  Oven does heat quickly, but the Preheat bell isn't loud enough so I have to keep watching the screen.  Overall, it nice looking and does what it's intended to do.