I love it too. I use it on the mix buss in every mix now, mixing into it from the start (and checking the threshold occasionally as I adjust balances, to maintain 2 - 4 db of reduction). I definitely prefer it to the Waves SSL buss comp which I was using before, and to CLA MixDown, which I was also using for mix buss compression duties.

I've started using it elsewhere in the mix as well, particularly as a vocal limiter.