Difficult but I enjoyed it.
Unreal's lighting did shine through in some areas while in some I had to turn the graphics down just to see where I was going and what I needed to do.
The game stuttered a lot even on low. I don't know why as both my GPU & CPU were hovering around 50%. Maybe some null variables were being caught.
Jump was a bit floaty, more air control would have been nice.
I also wish there was an end screen because I spent 30 mins trying to figure out where I was suppose to go.
I advise against turning the graphics down to low as this might happen