It’s a perfectly good camera. I shoot mostly landscapes and have been using it for about a month.
I don’t really care that the R is mirrorless. I wanted a body compatible with my Canon lenses, with a decent sensor, and with a tilting screen. OTOH mirrorless is handy because the electronic viewfinder displays the histogram before the shot, and the image and data after the shot.
I use a tilting screen because many of my compositions are taken from down low. The tilting screen seems robust enough, and flips out easily even when I am using gloves.
I initially got a Sony a7iii because I enjoy using Sony 1” and APS-C cameras, but that didn’t work out because the
Metabones adapter seems to have destroyed the Sony camera. What I miss from the Sony: the joy stick, IBIS, an ability to gather my menu selections in one place, and zebras. Zebras are brilliant.
The Canon has a couple of advantages over the Sony. The tilting screen can be used vertically. There is a small screen on the top of the camera. Canon lenses work via a Canon adapter, and no third-party adapter is needed.
The function bar works fine, even with gloves. Mine controls ISO. I use the front dial for shutter speed, and back dial for aperture. So all exposure controls are handy.
So the R is a fine body if you want to use your Canon lenses.