The downsides I will say that the game communicated poorly what must be done. I did find it fun to find the body, but I did not realise I had not turned the power on even after interacting with the body till I saw someone else's playthrough of the game. Also as fun as it was to find the body, I feel like there should have been more indicators or more of a story with notes or objects and items that alluded to why the person was killed there and slowly leading the player there.
The ghosts coming in after the power was turned on again was really great! Though it was slightly annoying as the game put the player back all the way at the start.
But those are just how I felt, you still did a great jpb integrating the music with the game and making it such a spooky and great experience! Good luck with any future projects!