This chair is amazing.  The chair has to be put together which I found to be very easy, the instructions were a bit lacking (just pictures and no explanation).  But after a few tweaks from putting an arm on backwards it all came together beautifully.  This chair has height adjustment and a tilt mechanism.  The chrome is heavy duty and not a cheap flaking paint job, the wheels roll beautifully even over my carpet.  I would buy this chair again and recommend to anyone.  I use it in my home at my work station and I couldn't be happier.