"The Gentlemen" is faster and feels a little less rough in terms of filmmaking, more stylized. How the supblots are interwoven and coming to a conclusion is suprising and funny, but when I watched "Snatch" again a few days later I thought "The Gentlemen" probably won't feel as fresh as "Snatch" still does even after multiple viewings. However I'm sure everyone who enjoyed "Snatch" will like "The Gentlemen" just as much. It's a fun movie with a killer soundtrack.
On topic: In a German board someone has got the steelbook already and he's so disappointed with it that he wouldn't even bother taking photos. This certainly doesn't sound promising, especially given it's a Concorde steel. They don't have the best record with great steels, to put it mildly.