Back when I worked in an office, I sat in one for a couple years. Great chair, but I’m not going to spend that kind of money for a chair at home. I’ve been working from the home office for over 5 years now, and using this chair from Ikea: http://www.ikea.com/us/en/catalog/products/00103102/
I find it just as comfortable, and it’s held up really well over the years.