I absolutely LOVED this game and will definitely be checking out your other ones. This was gorgeous, atmospheric, and emotional - I was genuinely surprised by who ended up being at the top of the stairway, and it really touched my heart.
I used the walkthrough for the first quest, and then I felt like I understood how to do things in the game better and didn't need it again. There was a really nice rhythm to the back and forth in the puzzles that I feel like definitely contributed to the relaxing atmosphere.
Speaking of, you nailed it! I actually played this in the ER/hospital after my partner was admitted and it was a really comforting experience during a very stressful time.