My only problem was getting the rollers in place. Takes patience and lubrication to get that done. Thomas the Staples rep in Cambridge did an excellent job in dealing with this purchase.
Very comfortable chair but I hate the plastic mesh material. That has an uncomfortable feel to it especially in shorts or skirt. Sat in store model but was wearing pants so I didn’t pay attention. Debating returning or find something to cover seat.
Easy to put together comes with all tools required. The base is steel and seems pretty strong. Good adjustments and comfortable. Been using for a week and I don't get any spots that get sore after sitting for a long time. Good price vs performance. When it arrived the material has a strong smell of plastics and fabric. Needs a few days to air out.