I tried a mirrorless. Have you?

I definitely prefer a camera with an OVF, but I don't have a problem with a decent EVF. The main thing with mirrorless cameras is their autofocus accuracy & autofocus features like subject detection, eye-detection for humans, animals, & even birds. Since the autofocus system is either embedded into the sensor or they utilize contrast detect, you basically never have to adjust a lens for accuracy like you do with a DSLR. It makes it a lot easier to achieve perfect focus with any native lens. Is the AF 100% accurate & reliable all the time? No, but they nail focus a bit more accurately most of the time than a DSLR.

In the end, both systems have their own set of drawbacks. It ends up being a matter of what the user is willing to to give up in order to get. Some OSPDAF mirrorless bodies suffer from banding. Mirrorless bodies with contrast detect AF kind of suck at continuous autofocus. Mirrorless bodies can lag at times when changing settings since they're almost like a mini-computer. They do offer autofocus modes that most DSLRs can only dream of. DSLRs can suffer from autofocus inaccuracies at times, but you get a real time view with the OVF. Yeah. You give up something for something else.

Though I enjoy shooting my K-50 & K-3II, the few mirrorless bodies that I've used so far have completely blown away the K-3II in autofocus accuracy & speed. All my primes have been adjusted in the K-3II, but there are times where the AF can't seem to nail the focus correctly. But yeah. The EVF can feel a bit weird at times. I guess that one could eventually get used to it, but it's still nothing like an OVF.