Should I upgrade my GX8 to G9?

I did, and have been pretty happy. Though my primary reason for the G9 was to shoot more action/wildlife and to pick up a PL100-400. If it weren't for those reasons I'd probably still get along fine with the GX8. Things that made a big difference to me:

• IBIS is way better than the GX8. hand holding 2+ second night shots that are sharp is a miracle
• Image quality- I do notice much better colors with JPEG and raw and helps cut down on processing time. maybe placebo but I find the lack of AA to be sharper. Also, l.monochrome D is a lot of fun.
• higher ISO image quality
• handling- I love the GX8 form factor but it had quite a few ergonomic quirks. The G9 solved all the issues I had. And all the FN buttons/dials are in precisely the right place.
• Speed- just a faster camera all around.
• Optional battery grip. I bought my G9 used and this came with it. I like this a lot.
• It takes advantage and owns up to the size. I felt like I really liked the GX8 but wasn't big enough for "serious shooting" (due to ergonomics/features) especially with larger lenses; yet wasn't small enough for "take everywhere" casual shooting or backpacking ultralight missions.
• edit: also USB charging and dual card slots that let me copy and backup raws to a different card. both of these are great for travel. 

Things I miss from the GX8:

• Articulating Viewfinder. I always used this on the GX8 not just for low shots, but also from an ergonomic point of view just tilting it up a few degrees really reduces the strain because you hold the camera lower. I noticed this in contrast to the G9. It's not the really the extra weight- it's just that having to hold the camera up completely to your face does fatigue you. I know this is contrary to my last point above.
• The EVF, technically the G9 is better, but the execution is still better in the GX8. The G9 it feels too 'deep' in the prism and you kind of have to work to see it and because the viewfinder doesn't articulate and is centered you have to turn your face sideways (whether left or right eye dominant) which makes it feel unnatural.
• Which leads to my next point, I really really really love touch AF while looking through the viewfinder of the GX8. I can use my left eye, I can tilt up the EVF so my nose doesn't make contact with the screen. And as much as I try to use use the joystick on the G9 I am a firm believer that touching the screen is still faster than a joystick. On the G9 I shoot differently (I turn off touch AF completely and use a lot more AFC which the G9 creams the GX8 in speed) and kind of adapted. But I think the GX8 form factor really lent itself to touch AF. I was anti touch screen for a long time and the GX8/GM5 change my mind.

I did end up selling the GX8 to my buddy. will probably replace it with a GX9. For me I want something a tad bigger than my GM5, and a tad smaller than the GX8. Also I'd love L.Monochrome D on a smaller/portable casual shooter. I'll take the compromised EVF.