Pretty good for a plastic chair. They look good. They are rated commercial and 300 lbs, but the seat is kind of narrow for anybody over circa 240 lbs. That said, they are a good size for people who fall within about one standard deviation on the weight and height tables. They aren't stiff plastic, so the legs don't feel super strong, but I think they'll hold up well. I like that they are stackable and relatively lightweight and easy to move around. I also appreciate the perforations that keep water and pollens, dust, etc. from collecting on the seat. They aren't bulky and don't take up too much room on the patio.