Completed the game last night and I enjoyed it quite a bit.
Personally I didn't mind that they left it a little ambiguous at the end. I like that it lets you debate in your mind which decision Marianne was driven to. The only drawback, to me, being that it comes at the expense of having an aftermath scene where the characters get closure. The final third of the game ended up being my favorite because the gameplay ramped up to the point where I felt more engaged. Combined with a consistent string of strong emotional payoffs for most of the story threads up until that point. There's another game,
Red Candle's Detention, that used horror as a means to explore the psychological turmoil of people living in an authoritarian state (Taiwan under martial law in the 60s). I think that game is basically a masterpiece and in The Medium's best moments it really reminded me of Detention.
Unfortunately other aspects also hold it back, bad performance, the
Thomas sections drag on for far too long imo and overall much more could have been done with the mechanics they created.
Pros:
Gorgeous environment art
Memorable character design
Interesting cast of characters and likable protagonist
Solid mystery
Unique and varied puzzle mechanics
Cons:
Performance issues
Stiff and uncanny facial animation, at times
Puzzles and mechanics lack depth for much of the game
Thomas sections are poorly paced
Other thoughts:
Game suffers from the Silent Hill comparison. The difference in gameplay has been discussed but there's also a major divide in narrative approach. Silent Hill leans much more heavily into metaphorical story telling and having things be open to interpretation.
Compare how Angela's sexual abuse is explored in Silent Hill 2 vs Lilliane's abuse in The Medium. In Silent Hill 2 you get a claustrophobic room full of pulsating fleshlike holes, a disturbing creature that resembles bodies tightly wrapped underneath an odd fabric. Angela's dialogue is cryptic and vague. You're left to wonder what all this haunting imagery could mean and it's on the player to piece things together. Whereas in the Medium you're very overtly guided through flashback style vignettes and cutscenes that explain everything to you in certain terms with basically no room for interpretation.
I'm not making a value judgement on one narrative approach versus another, both have their place, but it's just to say that most of the ways The Medium is "like Silent Hill" are surface level. So it's unfortunate that the marketing for this game had so many people primed to expect an SH-like. Since, judged on it's own merits, it's a well made psychological horror adventure game.
Overall I'd give the game a strong 7 out of 10. Any fan of horror and story-driven adventure games should give it a chance. The game has it's fair share of issues but they don't overwhelm the experience by any means and I liked it more and more as the game progressed. I hope this can be a success for Bloober Team and I'd like for them to make more games in this style.