I wasn't sure what I was doing or why. Ostensibly, I'm on my way to work, but my limited understanding of where I need to go and what train routes get me where left me feeling mostly frustrated.
Perhaps this game would work better with a map as a companion piece--perhaps not, because there doesn't seem to be any reason to go to any specific place. Essentially you wander the subway in a fashion similar to the classic Zork maze--there are areas and people to look at, but none of them advance you or get you anywhere.
I can't tell you why I switched lines, or why I swapped trains--as my protagonist said sometimes, "Or I could change to the Charing Cross branch. I could do that. There is nothing stopping me."
I found reading my protagonists stream-of-consciousness to be infectious. His sense of ennui and boredom made me wonder what I was doing and why I was bothering. I suspect this was the intention--but I found it frustrating. I prefer it when the emotions aren't told to me, but rather things I experience through good writing and plotting.
Finally, a twist occurs, but it is quite late in the narrative, and I had a hard time understanding what it was trying to tell me. It seems to be a meta-commentary, but I'm not sure on what--the nature of games, or a psychological statement? Ultimately, I was left wondering why my protagonist didn't just go into work, or get on a different train and go home to sleep off his hangover.