RE: Hovering. Hard or easy?
Not sure about g3 or apfd, but reflex xtr sim has a "time expansion factor" setting that allows the simulator to "slow down." Basically, normal setting is 1. If you put it on 2, it gives you twice as much time to react to the planes movement. 3 gives you three times as long to react than normal flight and anything after that is rediculously slow. I tried to hover for months before learning about this setting. After someone showed me the setting, i could hover pretty decent in normal speed in a couple of days.
Also, concentrate on the aileron control, or keeping the plane from spinning (hold a just a little right aileron). A lot easier to read the plane once you get that down.
At first it seems almost impossible to learn. But after you learn it, it's kinda like riding a bike, it just comes natural without thinking about it.