Pretty much, it's about as much as you'd expect these days for a free mobile game.
WELL actually if you're considerate about how you spend orbs you probably won't have to worry about the cooldown timer.
The game itself is either steamroll or be steamrolled. It's sort of fun to a point, just because it still has a little bit of the same charm to it, but the maps and the AI leave plenty to be desired.
Also apparently the unit rolling system is rigged in favor of 3DS FE characters. :^(
the person who wrote post below me does not expect as much from a mobile game