Picked up Shadows of Valentia to have something to do during long commutes, and yea, is pretty much Fire Emblem Does Shining Force. It has way less complexity in gameplay (just a handful of classes, no real skills, no strategic resource management except for dungeons, very basic economy), and map design is 99% banalshitboring. OTOH there's a lot more freedom due to the open worldmap and two parallel armies, plus some maps are made interesting through certain super-obnoxious and deadly enemy types... at least on Hard. There's a built-in cheat that allows the player to go back in time, just like CHARIOT in Tactics Ogre... of course it doesn't seem to work on the single biggest thing RNG can screw you on (aka. levelling) and there aren't any super-complex maps like in Conquest where a single misstep or unlucky crit can screw you over 50 minutes in, so I haven't really used it. The dungeon stuff has some potential with resource management (characters get tired as they take damage, and this is persistent until you exit the dungeon -- only way to deal with it is via food consumables), but seems to add a lot of potential grindiness with rare enemies/drops and shit. Growths are so low that it's a better idea to just promote ASAP, etc.
That said, it isn't half bad when compared to the 3DS FE titles... I mean, the actual core gameplay isn't particularly good, but everything else is WAY better than Fates (and I assume Awakening), and I like the idea of selectable classes for a few characters even if it's not how FE works. A few other neat things as well, like every active participant in a battle getting a little bit of XP at the end with the caveat that it can't put them over 99. The writing is bog standard jrpg fare, but executed competently, there's full VA instead of each character getting just a few lines, etc. The novelty value also counts for a lot -- I don't think another SoV-like FE game would get above 70 on metacritic.