@lcoster, having any surgery is scary, especially brain surgery. I can understand why you would want to know about success rates. I agree with @thomhorowitz and @randallshields56 that best options are to go where there is expertise and a center where they do a high volume of surgeries. For example, Mayo Clinic neurosurgeons have extensive experience performing complex brain surgeries such as craniotomies. Every year, Mayo Clinic surgeons perform more than 1,400 craniotomies. Read more: https://www.mayoclinic.org/tests-procedures/craniotomy/care-at-mayo-clinic/pcc-20568983

Here are a couple of related discussions you may be interested in reading:
- What exactly happens before, during and after a Craniotomy? https://connect.mayoclinic.org/discussion/what-exactly-happens-before-during-and-after-a-craniotomy/
- What is recovery after craniotomy like? https://connect.mayoclinic.org/discussion/what-is-recovery-after-craniotomy-like/

@lcoster, do you have a date for your surgery? Are you at a center of excellence?