Like it a lot.
Particularly the Solid State path. EQ is very clean and compressor is fast enough to deal with dynamic issues when tracking. I also like the Mic pre on vocals in particular, combined with a C12-A for example.
The tube path is also good, but benefits from replacing the stock Sovteks with Telefunkens (which Millennia will do, or you can do yourself). Just gives it a tad more warmth, which makes it a more useful alternative.
I'm yet to find an all-in-one type tracking channel I prefer.