I have all but the Expander/Gate and the PC2A leveling Amplifier. Not sure that I need the gate, but am looking to purchase the 2A next time it goes on sale.
The ProChannel really works well for me and my style. I use the daylights out of it in my projects and folks say my work is getting better all the time.
Actually, I recently won a 1st Place spot in the Telefunken Mixdown Olympics, and the PC modules were used extensively in that project.
So yes, I'm a fan.
Good luck.
Tony
W7 32-bit/Sonar X1 Producer Expanded/iZotope Ozone 5/Sweetwater CS i5 Tower