It's actually made in West Germany, not Polish

I bought it relatively cheap, around 40 euros, and one more (G80-1000) coming soon.
Vintage Blacks are amazing, I tried them with DSA PBT caps for Ergodox and I was stunned. It felt better than anything I ever tried, the closest thing that comes to my mind is linear NMB switches from Amiga keyboards, but those had slightly shorter key travel. I'm totally considering making my ErgoDox with those switches and omitting the plate to have this feel.
The only thing that may prevent me from doing that is the fact that when I use linear switches I sometimes stop and check if the key really actuated. This never happens with tactile and clicky switches.