Hiya L.,
My 2 cents:
I liked Black Mirror's spookiness, graphics, and the puzzles were excellent. The ambiance of the castle and environs were dark and moody, and the little touches throughout such as fireflies or branches moving in the breeze were spectacular.
That said, I quickly grew tired of the dreary weather. Rain, rain go away.
I thought it unfair that the results of either left or right mouse clicking were inconsistent. Sometimes left clicking would have Samuel commenting about an item, while other times he'd go over and touch the item. I never quite knew which action would result. I also thought I had read somewhere that dying in the game was impossible, so imagine my surprise when I got Samuel electrocuted.
And my bigger surprise when I got a "game over" and had to redo a big portion of the game.
There was no surprise for me at the end of the game, I had figured out "whodunnit" around Chapter 3. Which kind of annoyed me.
All in all, Black Mirror was a pleasant diversion, but not a keeper for me. The things I didn't like about it far outweigh the things I did.
I probably went on too long but you did ask for opinions.
Leigh-Anne