I’ve been running a 52/34 for the past year or so. The shifting is pretty good. You do have to let off the gas a bit more and maybe hold the lever for a moment longer to let the chain catch on the big ring. At the same time I added a k-edge chain catcher just in case so chain drops have been relatively minimal. I get maybe one drop every 700-1000 miles.
I live in Michigan so in a race scenario I’m 99% in the big ring so I don’t have to worry about shifting the front in a stressful situation. It’s been a great combo for training around here and then when I go back home where it’s a bit more mountainous it’s nice to have that extra bit of easy gear.