Overall these are very comfortable. Assembly was not difficult. I am using them in a 3 season room. The one aspect I found somewhat annoying were the plastic bolt covers that come with the unit. They are black, plastic covers that go over the metal bolts. About it third of them were distended to the point they just fall off. The bolts are under the unit and fir the most part not visible so it wasn’t a big deal. If the manufacturer is going to include them though I think greater quality control is called  for.