I agree with what others are saying. Many people have had success with each of the different companies. However, if you're happy with how your trial's going and don't have any issues, I'd go with Medtronic. My rep (I have 2 Boston Scientific Units) told me something last week that I didn't know. She said that Boston Scientific and Medtronic units use different methods within the body in order to work. So I'd say it would be too risky to go for a device implanted permanently that you haven't gotten to test drive, especially if the one you did use for the trial worked well. Plus you'll be familiar with how things work and the protocols for the company, and you'll likely have the same rep as well, which will be good to have some consistency