This book is an absolute blast. After thoroughly breaking down the Avengers status quo in Disassembled, Bendis laid the groundwork to do what he really wanted to do with the Avengers: bring them into the modern world. The title "New Avengers" seems incredibly fitting, as it's still definitely an Avengers book, but in a much more current, post-Iraq mindset. The villains aren't as cut-and-dried, and it's not clear what the best solution is to any given conflict. This is a fairly well-trod concept in 2014, but Bendis kind of pushed mainstream comics in that direction almost by himself back in 2005 with these stories.
The character work in this book is almost perfect. Each character has a very unique, specific, and most importantly human voice, with the banter reminding me a lot of the Avengers movie: very real with a bit of comic flare. Bendis had been writing Ultimate Spider-Man for a while at this point, so his Spidey stuff is super on point (particularly compared to the mostly-shitty stuff JMS was doing concurrently in Amazing Spider-Man). He gives Captain America a solid edge of authority mixed with compassion that works better than a lot of Cap stuff I've seen. These points, combined with the thrilling-but-straightforward plotting, make a book that is a breeze to read while still feeling complex.
The only minor quibble I have with the book is its portrayal of Jessica Drew (Spider Woman), the only female Avenger thus far. I know these complaints have been levied against comics for years now, but she sometimes comes across very much as a sex object. However, here's the thing: it kind of feels like it's intentional? As in, maybe Bendis intentionally overly sexualized this character as a commentary on over-sexualized female characters, rather than just to blatantly do it. Here's my reasoning: nothing Jessica ever does is blatantly sexual, it's all in how she's viewed by the males in the book. Granted, she does wear a ridiculously tight spandex suit, and she's drawn as the most voluptuous woman this side of Power Girl, but she herself does not act sexual in this book. Characters comment several times on "how hot" she is, and she's even slightly capable of controlling men with her attractiveness, but she almost comes across as embarrassed of these abilities and the fact that they work so well. So, having not read any of the rest of New Avengers, I'm looking forward to how Bendis proceeds with Spider Woman, to see if this is a commentary, or if it's more stuff written for horny dudes. In any case, there is still more to her character than these traits, so there's that at the very least.
Another positive aspect of this book is Bendis's dialogue. He's long been a love-him-or-hate-him writer in this regard, but I feel like for New Avengers he really nailed his style. There's quips and side jokes and lots of (sometimes too much) talking, but it always flows organically during the scenes rather than just feeling like big blocks of time wasting text. This lets the book flow incredibly well, like watching a great action movie or something.
I know every comics person has already read this, but if you haven't, you really should. This is some of the most solid superhero stuff I've read in a long time.