This otherwise very high quality bench has one design flaw. The seat assembly is about 1/2” to narrow to snugly fit between the end frames. This results in the two securing screws intended to provide the seat support for each side being too short to work as intended. This support is needed so I had to create and install a wooden support on one side to remedy. This is a design flaw IMO and not a manufacturing defect. 
This bench would have rated 5 stars otherwise.