I am the second owner and just got it last month. It is in excellent condition. It comes with the EQ Bypass footswitch.
The cleans are fantastic and the tone shaping covered any of the tone pallets I wanted.
The two channel volume knobs are great. You can smash the thing it it will clean up with the volume knob (both single coil and humbuckers). However, it does not get as distorted as I wanted. I was not expecting a JCM 900, but I was hoping for mid-heavy JCM800. It was not quite there.
I could get there with a pedal, but I am looking for the simplest of rigs with just tuner and delay/verb.

I own 4 Dr. Z's and his builds are great...and you really need to hear each as there differences are more than subtle, but need to be heard in your space.

Original seller's blurb below:
"General Information: The heart of this design is its matched pair of KT66 power tubes paired with an ultra-linear output transformer.

The amp’s front end is similar to the earlier Remedy design… a player friendly revision of the two channel format where one input feeds high/normal simultaneously, allowing the player to blend them.

When matched with the Antidote’s 4 band EQ, this setup makes an incredible number of gain and tone variations possible.

The Antidote also features a “Vintage/Modern” circuit which gives the user the ability to time warp the amp’s voicing from mid 60’s to early 70’s and back again with the flip of a switch (yes, we refer to the 70’s as modern).

When over-driven, the Antidote is smooth as silk. Mids and top and bottom balance are strong and thick when pushed with a Humbucker. The addictive blend of bell-like high end shimmer and thick punchy lows results in a sound that is difficult to unplug from. In the good doctor’s words: “it already sounds like a record…but cranked”.

Located on the rear panel is a jack for the foot-switchable EQ bypass function which dramatically increases gain and thickness in both channels when activated. This can be used as a lead boost or a higher gain channel as the amp’s High/Normal volume controls can still be used to adjust the gain and tone even with the EQ bypassed"