We bought these for our raised breakfast bar. The height adjustment is great. Putting them together took some talent but not an excessive amount. In addition, about a month after, the seat screws started randomly falling out of the chair seat. Might need some sticking substance or keep an eye out for them and replace.
Bought it for the kitchen counter. Have kids (4,8) that use it all the time and it looks decent and works great for them. As some of the other reviews mention - you if are upward of 150+ pounds then its not as sturdy any more. The seat is held down by screws going into a cardboard/flimsy wooden pad on the bottom of the seat. And adults using the chair can loosen or dislodge the screw just by the weight put on the seats. But keep in mind that you are not paying a lot for the set.
We bought 2 sets of these bar stools for our kitchen and they work very well. They are attractive and not too heavy-looking. One of the bar stools swings around very easily, so it bangs on the counter a good bit with young children Otherwise, very good product!