It's interesting plus there is the question of quality of work as well as the followup process.
From what I can gather (others please correct me if I am wrong), Dr. Kim does so well because of both the exacting precision with which he does this surgery compared to others and because of the extensive recovery process he has each patient follow.
The questions then become whether Dr. Haben can do as precise work as Dr. Kim and whether his recovery instructions will be as comprehensive as Dr. Kim.