I don't mind it, don't look to play it often, will end up there sometimes though in scrambles or inverted/leg games and have no issue with it and will work from there
I like Marcelo's thoughts on it, will have to watch the vid again, but basically went like this on why he doesn't play 50/50
"I never give 50, it doesn't make sense to me, only time I every give 50 is a hand shake before the match, even good luck, I dont give it, that's stupid, if he give it of course I take it, but I never give 50"
Also, the lamest thing in bjj is gi 50/50 for advantage wins