To all my friends: If you like turn-based strategy games, this is an absolute must-buy. Its got nice RPG-elements(levels, equipment, crafiting, upgrading, an insane amount of different equippable passive skills, 2 classes per character, multiple characters), has so many CGs that many Visual Novels could be be jealous and the combat-system is really solid.
It's also got a good amount of story-scenes, which have lots of choices that probably won't have consequences down the line, but I didn't read up if that's really the case.
To the XCOM-fans among you, it's somewhat similar, but with magic and no perma-death. With more mission-types, that boil down to be somewhat similar amongst one another tho, and more variety between characters, but no renaming and barely any visual customisation. They're their own characters after all.

This isn't an in-depth review, it's just a recommendation to friends. Any questions, feel free to ask, but I'm not through the game(far from it, lol), so I can't answer about length.