Patient satisfaction will be measured by symptom quality of life questionnaires (pre-operatively, 3 months and one year) and patient pain will be measured by verbal analogue rating scale (post-operative day 1 and day 7). Clinical efficacy will be measured by a cough stress test pre-operatively and post-operatively at 3 months and 1 year. A Q-tip test will also be performed pre-operatively and at 3 months and 1 year post-operatively. Subjects will be followed for a minimum of one year to evaluate recurrence of symptoms and complications, including the rate of mesh erosion, time to normal void in the post-operative period, the rate of sling revision, post-operative pain, voiding dysfunction and de novo urgency.