... Do I care where the viewfinder is placed and how it looks? Not in the least, for me kind of trivial compared to these other considerations, because a camera isn't a piece of jewelry, it's for making photographs; but each to his/her own.
I do care where the viewfinder is placed, having recently become left-eyed (due to surgery). The issue is nose-pokes if you want to use the touchscreen while shooting. I have gone to a Canon EOS M-5, because Canon lets you choose which of the 4 quarters of the touchscreen are active. That in turn lets you use a finger to choose the focus point, should you so wish, instead of your nose doing it for you. (This despite the significant lack of EOS-M lenses. I was using Fuji and still have quite a few Fuji lenses, but back to the topic at hand.)
I don't see where/how Leica has addressed this issue with the CL.
I am also concerned about having no ports. My experience with Fuji and Canon wifi offloads is that it works ok for a few images, but is not practical for offloading a day's shooting, just too slow. So, with the CL, is it back to sneakernet, taking out the SD card and reading it directly into the computer? The early reviews I have read so far just sort of skim over this issue.