I'm loving this review on the R6 MK2

Justme wrote:

Well, finally bought the R6 MK2. Likely not going to use the 6D (v1) again but will keep as backup.

I am most looking forward to the eye-tracking, IBIS, lighter weight, better AF in very low light and not having to worry about lens adjustments.

Sticking to my EF lenses for now. Want to see how my non-IS lenses perform like the 200 2.8L, 400 5.6L and 70-200 f4 non-IS. Even the original Canon 100 2.8 Macro non-IS.

Like most of my previous purchases within the last 16 years, plan to keep this camera for 8 years or more.

I think you'll love it. I got mine on Saturday, arrived early from Canada. I've been playing around with it a bit, setting buttons and dials (still subject to change). The AF is terrific. It's similar to my R7, which is simply amazingly good, but perhaps even better (the R6II is even better than the R7, I mean). It has a couple more features added to the capabilities. One is an auto setting, where it detects what the subject is and uses that setting (people, animals, vehicles). Another is one I don't see myself using, which is the ability to set right or left eye for eye detect. I pretty much always want the closer eye in focus, which is what the auto setting does, so I've disabled the other two settings for now. That also makes it quicker to toggle between eye detect on and off, without having to go through the other two settings as well. It's a bit bigger in the hand than the R7, but definitely not huge. Still a lot smaller than the 7DII, which is what my R7 replaced. It will be interesting for me to see how much I use the R7, now that I have the R6II. The R7 is definitely better for focal length limited situations, but I don't do a lot of wildlife photography.

I know you said you're sticking to EF lenses, but consider the RF 100-400. It's so cheap and light, and amazingly sharp for the price. Duade Patton has a review of that as well. He's very impressed. F8 on modern mirrorless is not really dim.