I'm a bit on the fence about this book. It may have been ruined for me having heard such phenomenal things, then reading part of it during my Kindle Unlimited trial and then owning the book and shelving it for months. 
 For some reason, reading this book put me in an awful mood. I was actually pissed off while reading it and only occasionally smiled or laughed at something. 
 The plot itself is "alright" - it's unfair to say more than that since this is a series and I haven't read the rest. The pacing is very good and full of action, as you've probably read in almost every other review. 
 I'm not a big fan of the characters. I think it was the protagonist's mother who most piqued my interest, as I'd never experienced a character like her before. She gives the book a dark twist that intrigued me enough to buy the book. The protagonist herself disappoints me. Maybe it's because I haven't read the other books, but I find it so hard to believe that (view spoiler)[ a practically-perfect-in-every-way angel, who is completely against angels and "Daughters of Men" being together, would fall for Penryn. (Or at least that's what it seems is going to happen in the following books.) (hide spoiler)] I love that she's strong, I love that she has inner conflict to keep calm in the crazy world she's in, but I hate that so much of that cool and collected calculation just vanished (view spoiler)[ whenever Raffe is topless and/or near her (hide spoiler)]. 
 Raffe... Oh Raffe... I really wanted to like this character, just as equally cool and collected but more disciplined than Penryn and so perfect. Too perfect. (view spoiler)[ I'm just going to say it here in the spoilers because it doesn't have much to do with the review: I did a Mary Sue test for Raffe! Yes I did, I had some free time on my hands! His results were off. the. charts. Now I'm not saying he's a self insert or anything, I'm saying he's too perfect and this makes him hard to relate to, hard to sympathise for and boring. Don't get me wrong, out of all the characters his sarcasm/cockiness made him by far the funniest. Penryn would just come off as a mouse poking fun at a lion. (hide spoiler)] Maybe it's because he's an angel? Either way it gets a bit old. (view spoiler)[ And it makes my blood boil that his perfect thinking and rationality disintegrates into nothing for Penryn. I don't find it romantic that he puts his current life's goal into jeopardy for Penryn, I find it out of character. Maybe it's because I don't know what his plan is besides getting his wings back, since I haven't read the continuations, but as a stand-alone review of Angelfall - nope. (hide spoiler)] 
 I think I was just expecting something completely different. I was expecting a post-apocalyptic adventure, where humanity has sunk into a crazed frenzy of fear and struggle for survival. Penryn's sister has been stolen from her and she, accompanied by her less-than-sane mother, must go find her with the help of their captive angel. 
 Instead I got unnecessary gore to set the world's new tone, weird improbable subtle hints of romance (because a book is not complete without it!), and a resistance against a completely unexplained enemy threat. 
 I will definitely shelf this and give this another go sometime in the future, rather than give the book away. Hopefully, giving it a read while expecting something bad will help me see it's redeeming qualities even better ;)