6'3" here, and I have room to spare. It may be an issue if you're tall and you do track days/autocross since your helmet might not clear too well.
It wasn't an option I absolutely needed, and honestly probably would have chosen one without, but the price they gave me and other options were precisely what I wanted so I went for it anyhow. That said, I do enjoy it, it's just not a must-have for me.