I used to have a Herman Miller Celle that I loved (a lower range Herman Miller) but after a year or two the seat bottom cloth got worn out pretty fast. I ended up selling it when I moved. Now I have a Stealcase Chair I purchased from a YC company that was moving (about $150 used). It's not one of their high-end ones either and looks pretty ugly but it's very supportive and firm. I wish the back was higher though.