These were a great purchase for our concrete patio. They were easy to assemble and seem very sturdy. There are tie downs which keep the cushions from blowing off in the wind. The cushions are not super thick (true to the picture), but they are comfortable. I also like that while it is not waterproof, it IS water resistant so when it is left out in the rain, the drops puddle and are easy to wipe off. I would have given it 5 stars, but the chair does not "completely" recline when you want to lay on your stomach. It goes down to within an inch or two, so it's almost there, but the mechanism on the back of the chair prevents it from going all the way down.