Ant-Man is highly enjoyable and a lot of fun

Rating: 9/10 (30 July 2015)

Top-3 tier for Marvel? I'd say so. Your enjoyment will depend on how much you enjoy epic ensemble action or feel good superhero action with lots of comedy and some feels. So are you more Avengers or Guardians of the Galaxy kind of guy? If you say GOTG then I think you'll enjoy Ant- Man.
The movie is very well balanced structure wise and you can feel Edgar Wrights touch in this although he left the project. Corey Stoll is great as the villain and the rest of the cast is great too.
Highly recommended, then again I don't think Marvels own studios have made a bad movie (Except few mediocre ones like The Incredible Hulk and the first Captain America movie) and this is another very enjoyable film.