Wow - what a deal. I have the same cabinet but the previous year's model so the opening is a little smaller and the overall cabinet size a little smaller.
I love mine and I'm sure you'll love yours too!! Especially for the price. Mine was lots more than you paid.
I thought the little extension setup on the right would be annoying, but when I add in the desktop extender over the corner, it makes a great little spot to trim up squares or keep my supply kit open, keep a drink and more.
Congrats!!!