The best thing about Lonely Places is its high rate of dramatic escalation. I've never seen a game move from a single incident (your car breaking down – at night – in the rain) to the scenery-devouring business end of a whole lot of Lovecraftian shenanigans so quickly. No ponderous sloggings through the mythology of ancient smiting beings for this protagonist!
While it's set in the modern world, the game mobilises a handful of character names, speech styles and incidents from Lovecraft's stories, making it more a winky pastiche than one of those enormous reverent ones. Its own story is freestanding and does not demand any prior knowledge of Lovecraft, but the end of game assessment of the PC does, at least if you want to fully understand it; it tells you which Lovecraft character you most behaved like during play. Your playing style is also described in more practical terms, a neat feature which doubles as a means of giving clues for how you could try to change things up on your next play.
Lonely Places is not a very strongly implemented game but it does a good job of cramming a fair bit of action into a small space. I think it's actually a good example of what you can potentially do with Inform without killing yourself as an author. A significant element of this is the game's forward trajectory, where certain events keep crashing into the protagonist, forcing the player onwards or keeping them alert. It also helps that the forward movement often covers for the game when the player is trying stuff that hasn't been accounted for, which in this game is a lot of stuff.
Lonely Places is novel in its ramping up the traditionally glacial pace of Lovecraftian goings-on. It achieves a degree of hysteria quickly and the effect is of a kind of ghoulish humour, a funny and affectionate comment on the typical trajectory of Lovecraft's stories. It will be more fun if you've read some of his work, but there are no barriers to play if you haven't.