where to start! i've only had it about a month.
tonally its amazing. it has a valve stage in each of the band gains, so for example if your going for that effect you can push the bass, or mid into satuation and keep the rest of the spectrum clean. for something that is has 6 valve stages per channel ( a pultec only has four) it is really clean though. probally cos it doesnn't have transformers in the signal path.
overall its pretty transparent until you start to push the gains a bit.
I intend to use it as a mix bus EQ, but haven't had a chance yet. i have no doubt it will excel at it.
when tracking it has an instrument in on the front, mic in, separate balanced and unbalanced line in (bypassing the pre), and balanced and unbalanced line out. really versatile. and a master out control as well.
the only slighly wierd thing about it is that is has four fully parametric bands per channel, and instead of shelfs if has sweepable filters. i think this is great maybe not to somepeoples taste.