I noted the dark tone, too, in an earlier post, but I wouldn't want people to think it's
all dreary and dismal. It's designed to provoke a whole range of responses from you; there are some moments of happy relief, too, when things actually go well.

But, yes, definitely, anyone who doesn't enjoy having their emotions tested by their games should steer clear!
You know, it's funny. I had no problems with Heavy Rain's controls, but there's a similar quick time event sequence in the new Resident Evil 5 DLC where you have to play the piano - don't ask

- which annoyed me
to no end at first - and it required only
two possible buttons! Talk about irony.

There are a few genuine plot holes, unfortunately, mostly minor; but others
do have plausible explanations, they just aren't explicitly mentioned in the game.