KMA Audio Machines Geminus Double Tracker

I've been using the pedal for a few weeks now and I have been really happy with it as I find the doubling and stereo width convincing and pleasant.
What I really like:
- Good tracking and stable doubling (the sound doesn't jump in the stereo space).
- Can give a very wide stereo effect and the time knob is effective for tightening or loosening the effect without having to go to the extreme.
- The build quality appears to be good.
- Rather transparent and respectful of the tone.
What I like less:
- No USB. If KMA were to refine their algorithm, the pedal couldn't be updated.
- The artwork: KMA has many pedals with very nice artwork but the Geminus looks a bit more "plain" to my eyes. Something like the Endgame would have been so nice!
- The tiny knobs: I'm not very fond of mini knobs and would have preferred standard size ones which I find easier to manipulate.
In conclusion, I think that the Geminus is one of the best doubler currently available.

I watched all the videos of geminus and endgame and I was excited about how amazing the KMA doubler sounds, I thought I would like something like that when practicing with headphones, I was really looking forward to it but after trying it out my joy faded, I simply can't hear the difference between geminus off and stereo to stereo or mono to stereo mode, geminus off vs mono to mono mode I can hear the difference but it's not pleasant to listen to at all, I tried it on flat headphones and also on my stereo pedalboard with 2 x 12 cabs. I would really like to keep it if geminus really behaved like in the youtube videos but I have now come to the opinion that these are reviews with post-processed sound. I am returning the pedal but I secretly hope that I just came across a bad piece and that I will still have the opportunity to try the good one.