It is a medium gain Plexi pedal. I have always argued except for shredding the medium gain pedals always have the best sound. High gain has too much clipping which
turns a pedal into a near Fuzz. Low gain pedals often
keep shifting between breakup and near breakup and
loose any smoothness to their tone.
The key to a great OD is in the 'voicing' or fixed sound before you start tweaking. My favourite OD is a Clemo Pimento Sardine a French pedal with one little switch a level and a gain.With that and my Plexi I am in heaven!
I won't break down the bells and whistles. The initial
voicing is excellent. Enjoy the vid.