So, ehm, this was my entry point in the Silent Hill franchise. Not a good one indeed, but i know there's a lot for me to explore.

About this "The Short Message"... the atmosphere was nice, and that's it. The explorable areas are the same rooms with the same assets, making the chasing sections very confusing and annoying. And there are like just two or three actual gameplay sections: you'll spend the majority of time just walking and reading stuff.
Also, my biggest fear revealed itself as the truth: the plot is just dull retoric moralist stuff about suicide and social anxiety, exposed without a bit of originality.
Don't spend two hours on this if you have something better to do.