Runs as flawlessly as can be on modern hardware.
Got the retail version working on a 4060 in W10 using dgv 2.87 (the game even works without dgv, though it runs too fast).
You'll need a virtual CD drive emulator like Daemon Tools that can mount bin/cue for the music and to pass the CD check.
The music is too loud, but ayuanx's ogg-winmm fork takes care of that.
The 1.2a patch needs the -d3d parameter but has choppy animations for some reason, so I recommend sticking to vanilla 1.0.
Wasn't able to find a detailed changelog, the readme just mentions a few video card fixes and nothing important.
I never got very far in the game so I dunno what other issues might be encountered.
Saw some rumor about an enemy in level 3 being unkillable but that might just be due to unlocked framerate which makes the game harder.