Not a fan of TBS combat...
X-Com: Enemy Unknown was a good example of combat that bore me quickly. Endgame it just got extremely tedious and unfun, and I was thinking about switching to super-easy just to get it over with.
D:OS... not the case.
I do agree about the crafting. I suppose adding a small segment to the current tutorial of adding half a key A + half a key B to make key to critical door you need to go through would be enough. Fortunately, if it's a very tiny thing to do it's more likely to happen than entire new rooms and mechanics needed to be added to the dungeon. Hopefully it happens, but it's not something I would list as critical.
