One of my all time BEST BUYS!!!!  Simply the easiest stool to put together. Packed without a ton of unnecessary packing material!! Together in under 30 minutes from opening the box to sitting and twirling with all evidence of a new purchase gone. 
Sturdy yet not too heavy. Seat padding is perfect. Look and feels like a much more expensive product. Hydraulic mechanism works flawlessly. Oh yeah... I got 2 of them...  Still 30 minutes or less. Look amazing and appears as though they will last forever. Thinking of getting 2 more because they are so perfect!!  From size, comfort and style!!!