Yes, they definitely shook up the market, which is great.
I have an A72, and an EOS R and have tried almost all the modern cameras in the market. I enjoy using the canon one significantly more than the A72. The A73 is slightly better but not overwhelmingly so.
Sony cameras are still meh, they still overheat. They are relatively frustrating to use. Their autofocus tends to hunt in low light (great eye AF notwithstanding).
They win at video, almost overwhelmingly in specs. Unfortunately, I am into photography, not video.
I suppose you are speaking of A7 II? Overheating is a problem for video only, and fixed on the A6400. Their technology is ahead of competition, not "meh". But it is a shame they do not have full touch screen, for some reason.
The camera body gets warm (not uncomfortably warm, but annoyingly so) after shooting stills for a while when the outside temperature is high. And it rebooted on its own quite a few times when I was traveling in my home country.
This also contributes to extra sensor noise in long exposure shots in the dark, which Sony tries to mitigate with software. This leads to the infamous 'star eater' scenario.
