I have a set of the Velocity Deep V 700s for my tandem. Great wheel for the $. I got no complaints.
The tandem was only $500 new, so it didn't make sense to spend a lot on a wheel set. I wanted to have a spare set so I could keep 700 x 38 on wheel set for off road, and 700 x 25 for road. The road set (Velocity) has QR skewers for fast repairs.