only issue I've heard about a 'Stitch from the owners I ride with is that the one piece suit is HOT in any kind of summer weather.
Especially bad when its humid, like it is here on the Gulf Coast.
I've ridden in 100+ degree weather while wearing my one-piece 'Stich.
If the weather is hot and dry, it's not too bad.
If the weather is hot and humid, it's unpleasant.