Looks pretty good, too bad about the wrinkles, but it was free right?
It dawned on me when I was looking at the picture about freeing up space (the mostly assembled cab in your room) that if you used anything more permanent that bolts (like glue) it's going to suck to have to break that thing apart if/when you move. I'm sure you planned for that though.
Congratulations on the helpful wife. My wife doesn't hate my cabinets or anything, but if I tried to get her inside one to help me out I think she'd come up with some uncomfortable suggestions of places I could put the cab instead.