What can be soldered with a hot air rework station?
What could I expect to solder consistently using hot air that's not &quot;possible&quot; with solder iron?

Anything with pads below the component. Thermal pads, QFN, BGA etc.
Though mostly hot air stations are a complementing tool to a solder iron, mainly used for removing components, particularly when you need to remove something without damaging the part.