It definitely depends on the person, but I think it also depends on what you're comparing them to.I found this discussion really amazing. There is obviously an extreme amount of variability in people's reaction to seats. Personally the first thing I noticed was just how comfortable I found the seats in our 2017 Volt. I really like them. I guess this is just one of those things that will never please everyone.
I think the leather seats in our 2017 volt are fine, although I do think they're uncomfortable for long trips. I'm also well aware they're rock hard compared to my wife's MKC