Mcintosh mc451 mono - anybody use this new dual amplifier?

I like idea about biamping speakers with tubes going to mid/ tweeters and solid-state going to bass drivers. It requires you to adjust the gain and crossovers to each speaker which doesn't seem so bad.

Basically it's a Macintosh 600 watt mono and a  2301 300 W tube amp combined under one roof and brought together by an internal crossover/gain device.

Has anyone had any experience with this new amp?