I agree that the MB210 is the best combo you can buy under $1000...unless you include the MB212 in that equation
I recently had a problem with one of the speakers in my MB212, out of warranty of course, and GK still replaced it at no charge.
But I was without the amp for a couple of weeks with a busy gig schedule, so I was borrowing gear and trying out lots of other brands to find a suitable backup. I won't drop all the names here, but I played most everything I could find in LA and nothing came close to the sound and balls of the MB212 for me, including a couple of rigs that were more than double the price.
So I'm buying the ultimate backup - another MB212.
Tallboy, can you tell me how you link your 2 amps up when you stack them? Some sort of Y box? I'm selling my 810 rig and plan on using the 2 MB212's stacked for outdoor gigs.