The style of writing and pacing of choices works quite well here, I think -- it's reminiscent of the original work, but those similarities serve to highlight the new touches you've added (interactivity and the college-aged characters). I did have to wonder how there are frat houses and apartment buildings out on West Egg, which is mostly big mansions in suburban drives -- but I suppose a wealthy enough fraternity could have a mansion as well as a traditional frat house right next to campus? (Or you could change the setting to the upper west side, or similar.)
It's definitely not boring or rushed! If anything, it felt like a leisurely introduction to characters and setting, easy to read and at a gentle pace. So gentle that it made me worry about how much more there is to read/write, but I'm sure that comes partly from knowing that there's a ton more story in the original book, and I imagine that by next week you're not going to try to do ALL of that, but have an abridged version in mind? At least I hope you do!