Thanks for the kind comments.
I hung it with a french cleat at the top and also a solid wood piece at the bottom that I screwed into the stud. The family has three little children and I didn't want to take any chances.
Crown is one of my weakest skills. I have a lion trimmer that I got at a WWS sale for $20 and it really helps fix the cut after the chop saw. Recently I made 20 picture frames and realized how great the lion trimmer is.
I forgot to mention one feature in my original post. I also was asked to hide a doorbell (top left cubby). I moved the back forward three inches to allow room for the doorbell and have it slide loosely in grooves from the top.
One thing that was a pain with construction was using 1/4" solid wood edge banding to hide the plywood edge. I used a hand plane and scraper to get all the pieces flush with the plywood case. The advantage of this method was that all the front pieces matched really well and had nice looking tight grain that would be near impossible to achieve with all solid wood. It is easier to see this in an unfinished picture:
After about 100 hours, I am sure glad to be done with this one.
Amy