I don't hate it, but I have a few problems with it though.
-The story is cheesy.
-Emmeryn being brought back from the dead. Basically it really soiled her sacrifice and makes her death way less significant.
-Lucina and Chrom are dull. (Gasp.) Especially after one gets over the superfanboy and fangirl craze.
-Intelligent Systems tried way too hard to bring the old games back with spotpass and the dlc. The only dlc maps I liked were all the Future Past ones. (It was more interesting than the story tbh.)
-The support conversations. Don't get me wrong, the support system really covered major weak points within having a "large" cast of characters within a video game, however, a large number of support conversations are so poorly written that it makes me cry. (PriamxFeMu (He basically fell for her after she did his laundry,) A and B for ChromxFeMu (They should have combined A and B, then made a separate A conversation, Gerome conversations are horridly bland (exception being NoirexGerome. Never been a fan of the silent lone wolf type that just ends up having an adorable side,) Miriel conversations that weren't with Lon'qu, and TharjaxFeMU ( should have an option to go lesbian for Tharja imo) to name a few.
-If anything, the game made it feel like the MaMu was superior to FeMu. (But that's just me I think.)
-The avatar ending overriding every spouse in the game.