This is one solid chair!  My husband was able to put it together in a short period of time.  The casters are amazing and the chair itself is roomy and comfortable.  The only thing I haven't figured out how to do yet is put the back straight upright.  It seems to recline a little which isn't how I sit but I'm sure I'll figure it out.  I definitely recommend this chair if you sit in the office as much as I do everyday!