I almost definitely would. Nexus 5 was my favorite phone I ever owned and I'm desperately in need of a new one to replace my buggy htc one m8. The 5X is a great value and if it were the only option, I'd feel like I was getting a great phone with the stock android experience.
Honestly the only other phone that would tempt me if that were the case would be the new blackberry slider...as odd as it sounds to say that. It looks slick with that curved screen, and it reminds me of my old palm pre. I don't even remember what a physical keyboard on a phone feels like, but I think it'd be nice, haha.