The insides of the pair I got came covered in dog or cat hair.  I don't have pets, so it wasn't from me. The soles don't look worn, so I guess someone returned them after trying them on.  Doesn't effect the shoe, but still kind of gross to get "new" shoes and have them covered in hair.
I am familiar with Saucony's sizing, so I knew what size to order.  Yes, they do run small.  I'm a woman who hates the colors that most women's running shoes come in, so I buy men's.  My foot is a size 7 1/2 (women's), but I buy a 7 1/2 in Saucony Men's due to them running small. Pro:  they are well-ventilated and light. Con:  zero arch support and very little cushioning.  If you can get them on a good sale, they are worth it for me since I always put inserts in my running shoes.