I feel short at 5'11 at times.
But if you're 5'10 to 6'0 you should be good. A girl is not going to be able to identify between 5'11 and 6'0 and 5'10 and 5'11.
I think it starts becoming a hindrance at 5'9 and under and your chances dramatically decrease with each inch below. 5'10 to 6'0 It doesn't really help or hurt you. 6'1+ it'll start to help out a chit ton.
But IRL, a girl who is average height like 5'4 to 5'6 will be fine with a guy who's just taller than them.
Kind of like how guys love a chick with nice tits, but in the end we'll settle for like any attractive girl and don't just limit ourselves to just big tit chicks.