The only thing I did not care for in the purchase of my chair was the support pillow that vibrates does not have an on/off switch. You have to plug and unplug to turn off/on.
Other than that the chair is perfect for the purpose I ordered it for. I am a Dispatcher for our Fire Department. I work 12 and 14 hour shifts. The long hours of sitting takes a toll on ones health. The chairs we have in our communications center have seen their better days and with extreme budget cuts no new ones can be ordered in the near future. I could tell such a difference when I got home last night after using my chair for my 12 hr shift yesterday. I actually had some energy and did not feel completely drained as I usually would.
Thank you!!