About 15 hours in (other games have been distracting me). Overall, it's not the worst FE game I've played (Shadow Dragon/Fates) but it's not the best either (Awakening/Sacred Stones).
My main gripes are the embarrassingly bad graphics (they got Pokemon lazy here), the pacing and school faffing about makes it feel like I'm not nearly as far into the main storyline as I should be for the 15 hour mark. Also hate that the triangle system apparently is no longer a part of the series now(?) It's like the series is straying further from what made FE stand out against it's rpg competitors.
If the next entries end up like Three Houses I'm probably done with the series outside of playing as FE characters in Smash.