My dad gave them to me to save for the road bike I'm saving up for. The thing is, the bike I'm saving up for already has equivalent wheels. He upgraded his, not because there was anything wrong with these, so much as because a salesperson convinced him. As for mileage, he has done one century ride, and he worked up to it for about six months at about 60-100 miles per week.
The wheels are straight and true, and they look new to me.
SHIMANO WH - RS 10wheel set