BFR-Blood Flow Restriction training, anyone try this?

I'd love to hear from this community if anyone has tried, or uses blood flow restriction cuffs, or Kaatsu bands, etc. I'm interested in hearing some opinions. Maybe any of the FB trainers might have an opinion as well.

I have read a few pros which include, can increase muscle strength and hypertrophy at lower training intensities, prevents muscle loss in individuals who are injured or recovering from surgery and can improve rehab time after injury/surgery.

Thank, you!