I'm sleepy so won't go into much detail on this, but re-watching it I noticed three things in particular - some of the acting still really bugs me, especially ragdollfishlady, but not enough to ruin the film or anything; the soundtrack is amazing, for example when Jack starts to get lost in the maze and freeze, the soundtrack actually manages to evoke icicles forming, gave me chills!; and the use of steadycam is fascinating and real creepy. I didn't notice this when I first saw it years ago, but for most of the movie almost every shot the camera is following characters from the front, or chasing them, or zooming in on them menacingly, or zooming out - for example - from Jack's typewriter as if it had been perusing his [lack of] work - to me, this creates an identification with the hotel itself, which is genuinely unsettling.
Despite some of it's flaws the film is really terrifying and vastly imaginative and, of course, visually stunning as is always the case with Kubrick.
Now, for a sitcom so I can sleep ~