Oh my god, you have to buy it! The first two sections aren't anything special and the first one is TERRIBLE, but the last two are laugh out loud worthy! Quentin makes up for his continuity failurse in other films by messing up the order of the rooms. The third segment actually happens before and during the second one, I know this because of the phone call that you hardly take notice of the first time.
Other little querks I found includes the Jack Rabbit Slim's logo through the curtains in The Man From Hollywood, also at the end when Quentin runs towards the lift he slips and mutters: 'Fuck' it's absolutely hilarious because it was a genuine mistake and because he does such long takes he didn't want to start it again! Also, Chester/Quentin is so clumsy in it: When he goes to open a new bottle of Cristal and takes a gulp out of it, it froths up all over him and goes everywhere and he smiles secretly, as does Tim Roth/Ted The Bellhop. The other clumsy mistake includes him knocking over a bottle of Jim Bean.
For anyone that has seen it what's up with the black guy calling Quentin funny looking, obviously Quentin wrote it and looked genuinely upset when he says it in the film, why why why??? ???