Just finished this in one sitting! SUCH a great debut, and matches up beautifully to her other novels with the gushy-gushy "THIS IS SO CUTE" mixed with an interesting premise (which wasn't actually creepy at all, especially since the female character was kinda stalking him right back) with sprinkles of real life issues that are present without turning the whole novel into an "Issue Book". 
 The Y2K shenanigans were hilarious, the film discussions and meet-cutes spoke to me on a deeper level (I used to write film reviews), and Lincoln's arrested development was intensely relatable. I also think that this is one of the first novels I've read that I would actively identify as being a "twenty-something" novel, which I really enjoyed! Work dramas and friendships, stressing about being in relationships that are going nowhere or conversely not being able to meet anyone, everyone being married, everyone having kids, feeling like everyone else has everything figured out and you don't, not knowing what to do with your career, hanging onto those little moments in the day that keep you going when not everything is smooth sailing... ... JUST SO RELATABLE! I need more characters and plotlines like this in my life.