Been playing the game for a while and I find it really, really good, totally in my top three games for Quest. Love the atmosphere and the locomotion of course. I have some gripes with it though (Quest version)!
Performance is kinda bad compared to other games. To play decently smooth I have to play with 0.8x resolution, direct-to-vr on, no AA or Bloom... It's quite dull and pixelated. But I recognize it's a custom engine and the non-euclidean space makes things a bit heavy (multiple cameras everywhere). I hope there's room for improvement, the Quest version could really stand out with just a bit more detail.
In my experience using Unity, shadows and shaders are what kill Quest performance. Reducing polycount helps mostly with memory, but probably there's something in the shaders that is slowing down things? The game looks already very lowpoly, I believe there's something else going on.
The elevator section with the cannons is pretty harsh. Lots of crouching to avoid death (even with crouching disallowed in the options), hard to see where the elevators will go when having multiple branches... The shield droid can only help some. After a couple runs it feels annoying rather than scary/anxious.
That's all, I believe. Keep on with the amazing work!