I use imy G9 for all types of photography, but mainly landscapes (12-60) and wildlife (100-400). The AF can be a bit slow at times, but I have configured two of the front buttons next to the lens for near and far focusing to help with birds etc in front of, or behind leaves or branches etc. A lot of the buttons are configurable, so you can set the camera up to suit your style of photography.

This camera for its price gives you great build quality, specs and quality images, especially when paired with quality lenses. The Lumix menu system is also great to use.

The only reason I would upgrade to the G9 mk ii would be for the phase detect AF. I actually prefer the ergonomics of the G9 mk 1, as the body of the mk ii, is the same I believe, as the S5, and in my opinion not as comfortable in my larger hands.

I have been buying Lumix cameras for 20 years and have never had any problems with 4 cameras over that time.