Overall, would recommend.
The characters are excellent, and while the explanation of how the two worlds coexist is kinda vague, it's easily overlooked.
I liked the explanations of how alchemy and magic can exist at the same time, as they seemed intelligent and well thought out.
The shipping can seem a little too sappy, but it's decent.
If you like FMA, Harry Potter, or both, I'd suggest you try this.