R7/R10 handling--very quick impressions

I had a chance to touch the two bodies and the kit lenses briefly at Canon's showroom in Tokyo today. Please note that I can't offer any meaningful insight on the image quality, since I was not able to see the shots on a larger screen, let alone take them home.

• There is little to say about the feel of the R7 in the hand--it feels similar to my R, which is to say excellent. I'm personally willing to give the controversial ring around the joystick a chance: the ring felt firm enough that I did not feel there was a serious risk of mishandling them, and the placement does allow for more control without large thumb movements. That said, it'll be hard to make a judgment without spending a few weeks in the field.
• R10 is surprisingly comfy to hold due to the prominent grip. There was a report that the grip is too close to the lens barrel and can hurt your fingers, but I found the grip perfectly comfortable enough with an adapted EF 100-400L2 (one of the largest lenses I expect to use with R7 or R10). I suppose gloves may present a problem, but otherwise the grip is fine.
• R10's controls looks somewhat cheapish compared to, say, 90D. It is not a Rebel-grade body, however: it includes features like minimum shutter speed in Av mode, which Canon never puts in a Rebel. It appears to sit somewhere between a Rebel and a 90D. The salesperson seemed to think the R7 was a 90D-class body.
• There was no challenging AF target in the showroom. Single-shot AF was swift and responsive, but that alone doesn't say much in this day and age. I'll just have to take Canon's word for it that it is R3-grade.
• The rolling shutter effect is so profound on both bodies--easily noticeable just by casually swinging the camera as you shoot bursts--that I'm not sure if you'd want to use that awe-inspiring 30fps on moving subjects. The salesperson openly admitted that the R7/R10 sensors trail R3/R5/R6 in this respect. 15fps with the mechanical shutter is more than sufficient for me, but if you actually need faster and/or silent fps, higher-grade bodies may be in order.
• Not sure if I'll ever like the 18-45, especially since it doesn't look any smaller than Nikon's surprisingly well-regarded 16-50. The kit lens I'll go for will probably be the 18-150. 
• The salesperson said many visitors are expressing desire for more RF-S lenses, especially something like an 11-22, and he believes more are coming. (I do not believe he has any inside information, though; he is just a showroom personnel, after all.)