I call this chair "Big Red", pictured next to the chair I had been using. I am 5' 1" tall and I found the seat too deep (front to back) for me to sit all the way back so I have to use a pillow, but that's not a problem. I found the foot rest ring ineffective because the ring diameter is narrower that the seat.  It was difficult to find a comfortable position with my feet on the ring no matter what height the ring was positioned. I'm using the trash can as a foot rest, which works perfectly to raise my legs to level, reducing strain on my lower back. Seat cushion and arms are comfortable. Chairs rolls easily with no fear of tip over.