I ordered a medium on 10/17/2012. Expected on 10/22/2012 so I will have time to try it on and reorder if I have to, but it got here 2 days late.  This costume is awesome. everything worked on it, but I had to make some modifications to it. The center chest light came unglued, so I had to cut a slit inside the suit and reglue it. Since it was a one piece, I had to undress the upper half of the costume to us the restroom. I wore shorts under to have pockets for my keys, phone, and wallet, but it was hard to get to. The light switch was also on the inside of the suit so u had to turn it on before completely putting on the costume. A velcro slit on the side would have taken care of it, but I just didn't have the equipment to do it. Overall, this is a great costume. If I ever get a one piece again, I'll make it a point to add some zippers or velcros at the necessary spots. 4 start because of service time.