Well... probably I'll be too obvious, but I'd like to enforce the advice to play all the paths that are available in the game to really enjoy it.
I started my play choosing to romance just one character(Tyson) only based on personal preference, and, while I really enjoyed the plot, at the end of the last update I simply abandoned the game for a while...
...After some time, out of curiosity, I returned to the game and decided to try different paths, and I'm glad that I did that, because it renewed my interest in discovering more...
It gives you more backgrounds of the different characters(and different POVs, that can also make you re-evaluate some of them), and more clues on what its happening in the mansion...
Thanks again for this awesome VN, I love the fact that the story is so complex and that every path is deeply intertwined in a broader scheme, I'm looking forward to see what it will happen to the poor Dave in the next update...
P.S: I'm still stuck at day 10, but I'm not giving up on the password already xD