Alone gives you the role of the protagonist in a zombie apocalypse, and does it well. For the most part, the immersion is quite successful. It's a no-nonsense horror game -- not particularly brutal, but the mood is pleasantly scary. The writing is pretty straightforward and well balanced, neither original nor too cliché, but perfectly effective.
I quite enjoyed Winters' previous entry, The House on Sycamore Lane, and Alone is a worthy follow-up. What I particularly liked about both games are how the puzzles are perfectly integrated in the story; they are all reasonable and natural obstacles for the protagonist. While never really difficult, the puzzles are still challenging enough to make you feel clever for solving them. Finishing the game took me 65 minutes, and I'm pretty sure I got the optimal ending -- a perfect length for such a game.