I bought this chair to use at my sewing station.  It is firm and supportive but does not have the "tilt" function as described on the website.  When reaching forward to sew it is adequate, but when leaning back to do other tasks it feels like I am still tilted forward, i.e. I cannot sit up vertically. My remedy is to loosen the screw under the seat so I can tilt the back of the chair backward a little, though this is not the intended use of that large screw.  Too much trouble to return the chair so I will make it work this way.  I guess that is the price of shopping for furniture without being able to try it.   Couldn't find a cloth upholstered desk chair in local stores so settled for online option.