I'm very happy with the results - it really provides a nice focal point for the room. More importantly, my wife absolutely loves it . If there was anything I would do differently, it would be to install a thicker mantle. The 2" thick stock I used gets a bit lost in the expanse of stone.
Now we just need to get some artwork back up on the walls, and get a shallow book case or two for the space on either side of the stone. We also plan to move the dog crate to the basement. I've been considering an Ekornes Stressless chair for that corner.