Get one, you will love it.
The issue as I see it with temperature. Most are still using ONE Chimney of charcoal to cook with, same amount used on your 22. The Bigger Grill will not get as hot as a 22 using the same amount of coals. Make some scaled up charcoal baskets and a second chimney of coals if you need a hotter temperature. OR use a third charcoal basket.
I do not have any issues with temperatures myself. It will hit 350+ on a single Chimney of charcoal. Where I might want a little more heat is using a Smoke EZ to grill on.
Bob