For this I was expecting all the F2P Shenaningans from Day 1 so I didn't hold it against the game when it came about. Stamina and Orbs are the bread and butter of Gacha Games and F2P games in general....so there you have it.
I also wanted a true FE for mobile, but since the series came back from the executioner's block more or less intact with Fire Emblem Awakening, and with a couple of new games in the series on the horizon as well I can live with the odd Heroes offspring, as long as the "true" games keep coming. Also since the days of old where Fire Emblem and a only a handful of other games could still my hunger for SRPGs are long gone and nowadays there are enough alternatives if you are willing to broaden your horizon and lessen your expectations a bit.
The mechanic that you loose all EXP you gained on that map if your character dies still incites careful play...not much like the series staple permadeath does it but at least to some degree.
For being a FE-nut myself I would give it a 4 Star....since 3,75 Stars sounds a bit to overly complicated....