I just went and bought it!
I'm going to run a pair of Polk Momo MMC650's and my JL 10" sub. I guess I'll probably just run my tweeters off the deck or keep my current 4-channel 160-watt soundstream and run them off of that. He recommended not running my tweeters off of this as it would be way overkill. The momo's are rated at 80 watts RMS max, but they don't think it will be a problem. Worst case I could run some resistors they said. I don't know much about their amps either, but it sure seems like a heck of a deal. The thing is a beast! It's a refurb, but it's got a 1 year warranty so for that price it should be a decent deal. No scratches or anything and it looks new. (knock on wood!). I was going to get another JL amp, but just couldn't pass this up. The JL was power rated way less and more than twice as much. The only thing that concerns me is that supposedly this thing draws 60 amps! Now I just need a few days of no rain so I can bring my baby in for install.