Thanks for all the suggestions!
Well, I have news.
I started watching some of youtube videos about cheap tube amps comparison etc. etc., to find out that a lot of those models have tubes in it... and that's it. They don't do anything, just cosmetics.
So I checked about this model, and found a cool guy who retro engineered this amp ( here the video if you want to watch it ).
Making the story short, the tubes here are linked and actually do something, but not the amp job. Basically inside there is a pretty standard op-amp which does the job, and the tubes are there to create some distortion effect (which someone find enjoable too).
So ye, it's an AMP with valves, but not a VALVE AMP, awesome stuff
That video will explain better than me for sure.
So all right, at first chance I'll probably get a Schiit Vali 2 or Valhalla 2 depending on my budget