I have on the Petroff either...I did find a few games in my database where it has been played by 2000+ players but white's results are terrible. I had a look at Cohen's book and I think if you know his analysis you shouldn't have any trouble...black just gets a good game. ...
I followed that game live on chess24 when it was being played, the problem was that Kramnik was actually playing for a win with that variation that's why he got into trouble, had his mindset been different he could have drawn easily, Fabi admitted as much after the game. Actually now ...