This is one of my favorite Final Fantasy games. I originally played the remake on the DS, and this is pretty much the same game… just on iOS. The new Hard difficulty is pretty tough on the first playthrough (no onion sword or augments). The Dr. Lugae fight was extremely difficult even when overleveled (though you can cheese it by using 2 elixirs on him - costly but effective). Of course, I also play it on fast + active, making it even harder.
That said, this is not perfect. For a start, the game is locked to 30 FPS. On a 120 Hz ProMotion display, this just doesn’t look good, but even on a standard 60 Hz display, it’s still very noticeable. This is likely a holdover of the DS version, and making it work at a higher frame rate would have been more work, but 60 or even 120 FPS support would have been greatly appreciated, especially given the low resolution textures that are otherwise not doing much for the game’s visuals.
Next, this game has some issues for when you switch between apps, switch sound devices, or overlay an app like Safari over the game (useful for planning augments for each character). Sometimes the sound stops working, and this can cause further issues like softlocks when exiting an airship.
All in all, I love this game, and it is one of the best ways to play this game, but it could be better.