It's funny you should say that- I absolutely ski harder in it and I call it the "onezie effect" since so many people notice you no matter what you're doing and I don't want to look like a jersey pizzamaking gaper. For the first time in my life this year some guy at Magic stopped me in the bar and was ilke "Hey man, I saw you send that big face on Redline, that was sick! Let me buy you a beer!" which I thought was out of left field but hey, it's a beer! Now having sent that same face the same way probably 50 times conservatively, I'm going to have to say that the onezie made an impression on the guy since it's just so different.
I guess what I'm saying is that if you're confident, ski well and can have a sense of humor about what the sticks-in-the-mud haave to say about your good times, then a onezie is for you. If you are easliy offended, tend to hack your way down the hill and are constantly worrying about what others are saying about your totally fkn rad attire, then perhaps something more traditional or understated would be your best choice. Personally I just love how comfy, cozy and protected from the elements I am all the time and I'm stoked on it because I almost didn't buy it because of the color- but then decided I'd totally pay $450 for a full suit of 3L Goretex Proshell in two pieces, and a onezie is just rad in it's uncompromising function anyways so vanity would have been the only reason I wouldn't have pulled the trigger. I'm glad I acted on the side of functionality because I really, really like it.