Before we really get into the Lumix DC-GX9, let's establish where it sits in Panasonic's lineup. Back in 2013, the GX7 pioneered the tilting EVF. Then Panasonic took the series upmarket with the GX8, and introduced a new lower-tier GX85 / GX80 / GX7 Mark II to go with it.
Street photographers; travel photographers who don't mind carrying an extra battery with them; enthusiasts that enjoy abundant controls and those who want great JPEGs right out of the camera
Hardcore landscape and sports shooters that may need greater dynamic range; resolution and burst speeds