Finally, something original!
Personally I wouldn't have minded the game being a little longer, even with the same amount of changes happening a bit more gradually. It would have just solidified the inane nature of the routine a bit more if it actually became a routine before the world went to shit.
I could have easily played through a whole week instead of just 3 days, even if each day only had a single scene changed. Thus the 4.5 stars, I feel as if the time would have been spent better if the game had been a bit less intense and more drawn out (that's probably the first time I've raised that as a point of criticism).
Either way. This was a really creative piece, you really spent those 48 hours well.