The published success rate is 68% with better results coming in post-trial studies. You need to have tried and failed CPAP, have a BMI less than 35, have an AHI between 15-65 and have no significant central sleep apnea and be above the age of 22. After this you need pass an airway exam which is performed in the OR under sedation. It is typically an outpatient procedure with minimal side effects beyond incision pain. Potential complications include device infection, tongue weakness and collapsed lung.