Just to be clear...I am writing this review based on my own experience and no one has asked me to write it. I had XLIF surgery 3 months ago to correct a slipped vertebra in my lumbar area. Dr. Mark Wang and the Spine Institute staff were great to deal with from diagnosis through post-surgery visits. Dr. Wang laid out my options and it was my decision to have the surgery--no pressure. I was lucky enough to have zero problems and now thanks to Dr. Wang I have zero pain. Everyone's case is different but my procedure went remarkably well--I can't say enough positive things about Dr. Wang and the Spine Institute. If you're suffering with back pain, get a consultation.