Nobody would mistake these for high-end furniture, but not bad for the extremely low price.  Easy to assemble.  Raise/lower mechanism works fine, and the base is quite stable.

Seat surface is kind of small, and the padding is pretty thin, so they're not comfortable to sit on for very long.  But perfectly okay to sit for a quick snack or a drink.

The one part that's obviously poor quality is the silver plastic strip that runs around the edge of the back and the seat - it's not straight, and just looks cheap.  Not that noticeable from a distance though.