A really good fire emblem game that focuses heavily on customizing your units in ways that you want, this game does a lot of things right but has a couple of flaws.

The Good:
Strong Units- Most of the units in this game are really good, they don't require much investment in order to be useable there are only a couple of units that are not worth using but otherwise most of them are really strong
More Freedom in Customization- This game gives you a lot of control and makes it easier to pick what class you want your units to be
Story- The story for this game is great like fates there are different routes and each one of them presents its own story and levels and each one of the routes is good
The Bad:
Magic- Magic in this game is odd basically it can only be used a certain number of times in a level before a unit cant use it anymore, in the early game you are only limited to about 5 time before your magic unit becomes useless but as you progress by evolving classes and learning more magic the mages become more viable and really strong, the same goes for healing magic
Recruitment- Recruiting more units in this game is different from the other your drunken posse cant just pick up random guys from the battlefield instead you have to build up your stats and proficiencies in weaponry in order to get them into your team and depending on what route you take you may not be able to recruit them onto your party.
Other than that that's pretty much my thoughts for this game a really good fire emblem game I'd reccomend.