As my signature indicates, I had a repair about eight months ago. I posted a link awhile back from the Circulation Journal from the American Heart Association that showed extremely good success rate for repairs over the long-term (about 85% success over 25 years). Unfortunately, the link no longer appears to work, so I can't repost. As stated, the best case for a repair is that your chances of a re-op are low, without having to live with ACT. The downside (unfortunately, with OHS, there appears to be a downside with any option) is that a relatively small percentage of repairs fail, and some fail very quickly. However, for me, the choice was a no-brainer.
I did get the impression from my cardiologist that your surgeon choice is a huge factor in the long-term success rate. I was told to specifically wait for Dr. Laks, even though I ended up on his waiting list for a couple months. He is locally known as a repair specialist, and I'm hoping to get a good 50 years out of mine. I can only hope that I made the right choice.