Just finished the game, last map was really intense and it took every Engage and every unit to clear the final boss without losing any character.
I have enjoyed it a lot, map design is great and battle graphics/animations are amazing, it feels like a proper follow up to the 3DS games in this regard. Music and the few CG cutscenes are also good, and I like a lot the Engage mechanic and the approach to classes of this game (even if Support enemy units can be too much at times).
Story and writing are weak points for sure, some supports are fine but the overall tone is too silly and simplistic. I have also some isues with the non-combat presentation, aside from some early cutscenes and all CG cinematics, most of the time you are not battling you are watching 2-3 still characters talking in front of a JPG background, this was also an issue in 3H of course but as Engange 3D models and animations look far better is disappointing that the story is presented in such a boring way.
Overall Engange is a great FE entry, it may not be the most complete FE as the story side of things is weak, but after 2 games with less than stellar map/gameplay design (Valentia and 3H), it feels great to return to what FE does the best: making every map a good challenge, making every crit an adreline rush and reducing all non-combat things to a mostly meaningless activity for players who want a more relaxed experience instead of forcing them.