Anyone had an ablation in Oklahoma or Cleveland?

My husband has had three failed cardiac ablations and we are currently trying to decide on where to go for the fourth. He has WPW and the pathway is by the middle cardiac vein and isn't the easiest thing to get to. The last one was three years ago at the Mayo Clinic in MN and we thought it was all taken care of. It's apparently back now and he has to have it done again. I've heard that the Heart Rhythm Institute in Oklahoma is known for difficult ablations and was wondering if anyone has had one there. I would love to go back to the Mayo Clinic but our insurance is not accepted now so that's not an option. If anyone can give me some feedback on their experience at either the Cleveland clinic or the Heart Rhythm Institute in Oklahoma that would be great. Also if there's anyone that has had an ablation in a difficult location it would be great to hear from you and where you went.

Thank you!