The good: Nice aesthetic, cool mechanics! and a nice, well done tutorial.
At one point early on I was running out of time for my shift clone to activate a switch so I was mashing "E" while running to it and I managed to activated the switch, but then the player character didn't respond to any key presses so I couldn't continue. I'd love to be able to but I am a bit worried that could happen again after a really frustrating puzzle.
Really, that glitch was the only thing that was bad about what I managed to experience! It's just... quite a major thing.