I've had a large and a mini maxx Big Green Egg for 7 years or so. Still very happy with them, use them 2-3 nights a week all year round, -30* no problem.
Christmas before the one just pass I got a Big Joe-tisserie for the large egg, and that has really upped the ante! Self basting, even cooking over smoky lump charcoal, it can't be beat.
The kamodo grills do an incredible job of locking the moisture in.