Lateral Approach Total Knee Replacement

I accompanied my wife for an Orthopedist consulatation at AOS (Advanced Ortho & Spine) for her bone on bone discomfort. They promote a New Era in Knee Replacement with Side Incision, claiming less pain and faster recovery with no muscle cutting. We reviewed patients on video walking naturally with no limping post two weeks TKR along with their testimony. I have had three traditional (vertical incision over the front of the knee) TKR surgeries, one being a revision, with the usual painful long term recovery.
Has anyone had this side incision procedure and will you share your pro/con experience. Thank you