the unit came on time and complete transction went very well. The unit does was it expected but i believe it is a bit difficult to use if your back it not well. the angles of bending required are extreme for someone with a bad back. They did allow my sore ankles from the cross bar to heal. There are too many moving parts to complete the closure.For folks in good shape just doing maintance then you should be handle it with no issue. Very safe and secure with no issues.