Avengers 2: Age of Ultron

First time doing this sort of thing, so let's try to get along.

Avengers: Age of Ultron is the sequel to the first Avengers movie and acts as the finale for Phase 2 of the Marvel Cinematic Universe (the name of the franchise, ignoring the X-men movies and other movies that have not been licensed by Marvel Studios).

What will break this movie:
One can already tell that the movies are becoming formulaic with similar structure to previous Marvel movies that might irritate or bore viewers expecting something new and intriguing. I will not explicitly describe the formula in case of spoiling the movie for people but most avid Marvel movie viewers can sort of get what I mean. In terms of narrative, it's nothing spectacular; it's just a basic story.
The romance between Hulk and Black Widow, while not irritating me like Tauriel and Fili from the Hobbit movies, did not really fit the narrative that well and for me, felt like it was a case of "Pair the Spares" that irritates me in most shows I watch. If previous movies could establish a budding romance or perhaps indicate the two were at the cusp of a budding romance, I could buy it and roll with it. As it is, it's a mixed reception.
 Another thing that could detract viewers is how quickly conflicts between the Avengers are resolved with arguments and a significant fight sequence between prominent members being resolved by the end with no visible hard feelings or a hint of resentment between the conflicting members. It would come across as an overly quick resolution to mounting tensions, though one could argue that with an apocalyptic event on the horizon, it makes sense to drop the tensions. With the advent of Captain America: Civil War, I can say that perhaps these conflicts will crop up again and along with the motivations of the Civil War, would create two conflicting sides with valid justifications for arguing against the other group. It might not appear this way to regular viewers but hey, it's a minor problem.

What will make this movie:
If you came in expecting an action-packed movie that can entertain, this will do just that. The movie is action-packed from the first 5 minutes alone and the battles do take place in well-shot scenes (though one prominent battle does go on a bit too long, not that this was a deal-breaker for me). The scene involving 'Archie' and V.E.R.O.N.I.C.A was quite good and when it ended, I wished it was a bit longer and that we got to see more of Veronica in this movie. As it stands, a standard action movie viewer would be entertained from start to finish (if they don't want complex and thought-provoking narrative and stories). [The action, for me, still pales in comparison to the Raid or Berandal, but that's another story]
The members of the Avengers do have a relationship with one another that has a natural dynamic unlike some team-ups that feel forced in comparison (The Last Airbender comes to mind but I should not bring it up for fear of self-lobotomy). Each Avenger gets some degree of prominence in the movies without placing too much attention on one particular member (that's what the solo member's movies are for) and even Hawkeye receives his fifteen minutes of fame, which was an improvement compared to the previous movie. Scarlet Witch and Quicksilver (not their names in the movie but it's more convenient for people referencing Wikipedia) perform well and aren't as mediocre in this movie than compared to Godzilla where their actors pale in comparison to Bryan Cranston in that movie. Here, it does its job, not amazing but not terrible and to their credit, they don't feel out of place in this movie. (Not sure if this Quicksilver or X-men's one is better, need to watch the X-men movies to double-check) As a whole, the relationships and the dynamics of the characters are done well though Joss Wheadon's script writing is present in their dialogue (as it should be since this is a Joss Wheadon movie).
Special effects and soundtrack do their job with no visible errors from my two viewings of the Avengers. I don't give those two aspects credit usually, especially the former unless it's something that can't be ignored. In here, they work fine and are just footnotes.
For me though, the best part of this movie would be Ultron. I know he doesn't look like the one from the comics but James Spader's voice makes each monologue a spectacle that sticks with you from start to finish. As a villain, Ultron is a run-of-the-mill 'wants to destroy the world' villain but that voice acting makes even the corniest speech amazing and spine-tingling (for additional examples, try the Lich from Adventure Time (Ron Perlman is a gift from God in those monologues)). (I will not discuss why Ultron is more complex than he appears to be as that could result in spoiler discussion).

Overall:
If you want an entertaining film to have a good time with friends and not a though-provoking experience, Age of Ultron does what the first Avengers film does; Be entertaining and a good watch if you keep your expectations at a moderate level and not go in like a hype monkey. Some things might put you off but for the most part, it works.