It's just incredible. Takes a while to get the hang of the boost and attenuation trick if you haven't used Pultecs before. And sometimes you might find yourself boosting more than you normally would. But with time, you don't boost as much as at first.
it's a very beautiful sounding plugin.
You might need another plug in in the chain for more radical stuff. Read more
I use the Slate Virtual Mix Rack a lot now, but the Tube Tech Channel is much more musical and not at all inclined to harsh, brittle or blubbery sounds.
I very highly recommend it! and Studio Economik!!!!