Yesterday evening, my 5e PHB arrived from Amazon. Here are a few very brief impressions.
I haven't had a chance to really dig into it, but scanning over the book gives me warm fuzzies. The artwork is a bit less "Wayne Reynolds" than I like (I'm one of the few people who like the kind of Anime-style of Pathfinder) but it's very attractive. The book's production overall is very nice as well. I like their whimsical touches as well. It hearkens back to AD&D a little, which I'm sure is the point.
I was happy to see so many classes represented in the book. It's not just the standard "Fighter, Cleric, Thief, Wizard" by any stretch. I was a bit confused why there were only two bloodlines for Sorcerers, but I guess the authors wanted to leave some room for future expansion.
The spells list seems to be a smaller percentage of the book than it was in previous editions, though I haven't actually done the page count to verify that. I really like this edition's take on Cantrips, Spells and Rituals. It matches ideas I've been using in my own games. The "Spell Slots" system is interesting, though it doesn't mesh with my "spells are like grenades - you prepare them and then throw them" explanation of D&D magic. That's ok, the 5e system might not make as much sense, but it looks like it will be more fun to play.
I may have more impressions once I've read the thing, but honestly everyone's doing 5e blogs these days, so I don't know that I'd have much to add to the discussion. I'll stick with more obscure topics, I think.