For one thing the seat fits my big butt. I tend to swivel from side to side a lot. Then I get up and right there is my stool waiting for me. The base it a real plus too. I've had swivel stool  with legs and I always seemed to get caught in them. They push over too easily for my use. Nothing like backing up to sit and the chair is tipped over. I could go on and on but I realize every person has their own reason and need for a specific stool. Did I say how absolutely sturdy the base is? Yes I love it.

Pros: I thought the price was great considering how much I got in return.
Cons: None so far.