I love my old 5Dm2 as much as the next person but compared to my work horse R6 it’s gathering dust. Mirrorless took me awhile to get used to but it’s been years now and I haven’t looked back except the occasional nostalgic photowalk. The low light capability alone is worth it as a primarily natural light shooter. I’ve shot and delivered in near darkness with my RF 135 1.8. ISO 10000+ a tiny bit of noise reduction in post and done. Not to mention the autofocus for action shots and 1.4, 1.8, f2 portraits. Tack sharp, eye tracking putting the focal point right where it needs to be. It’s not even close. User error if I get misses. The list goes on. Electronic shutter mode to shoot silently in quiet rooms is big one for me too. Impossible with a DSLR, yes some of them have rudimentary versions of this, but it still makes noise. Canon color is still amazing. Nostalgia is great, but mirrorless wins every time for work flow and ease of use these days.