I went into this game not really knowing what to expect and not expecting much more than something a little different.
Good surprises included a fairly decent story in a fairly interesting world; the conversational dialog was in my experience the most unique and interesting part of this game. Everything felt like a fairly real conversation surrounding a series of bizarre circumstances.
The bad; the controls were a little awkward, using shift key for the main action button was maybe not a good choice, I should have just played with a controller and I probably would have if this game had been longer than 3 hours. This game was short and I'm not going to knock it for that; Firewatch packs a lot of very interesting things in those 3 hours.
While a lot of things happened in the game, I don't feel like anything was resolved, not very "gamey", more like real life, not sure how I feel about that, kinda feels unfinished from a player's perspective.
I did spend almost the whole time I played wondering what the girl on the other end of that radio looked like, that's a pretty rare thing for me and I liked it.