Videos Sharper Image Air & Shiatsu Massage Cushion (MSI-CS775H) Review 1st July 2021 OMC 0 Comments Air, amp, Cushion, Image, Massage, MSICS775H, Review, Sharper, Shiatsu Review: 3/5 Maybe Best of Its Type, But Relaxation Is Unimpressive. I think this is the best of over-the-chair massage seat cushions, but it just wasn’t relaxing.