Similar experience to Ant-Man for me. An entertaining watch. Definitely not boring. Good acting. Inventive action. And like Matrix, Inception, Harry Potter, etc, it's always fun to be in a new world for the first time, learning all the new concepts and things. Fun stuff. And I was glad that the magic wasn't just random and deus-ex-machiny. They set up the different abilities and stuff well.
But overall, like Ant-Man, it didn't quite sink its teeth in me. I don't think the story had enough gripping emotional ups and downs in the right places. Despite a couple emotionally memorable scenes, including a character's death which I thought was handled beautifully, the climax and the ending are pretty flat. Despite doing a lot of things better or different than the movies it's often compared to, Strange doesn't do it for me the way Inception, Harry Potter, or the Matrix does. I also think a reason why it doesn't feel as special to me as those films is the casting of Cumberbatch. Strong actor, but I think a fresh face would have made the entire film feel more special and unique.
I also thought the visuals, while always holding my attention with their creativity, weren't necessarily thrilling or moving me very much, just like in Ant-Man.
So for a rating of my first watch, an 8/10, but I don't think I'm going to revisit it, so that rating will drop, at least in terms of my rankings of my favorite marvel films.