The chair was easy to put together, arrived in record time, and is incredibly comfortable to sit in.  The reason I gave it four stars instead of five stars is because I am only 5'4'' and I wish the seat tilted slightly forward which would allow me to be on my knees at the perfect angle.  Regardless, the memory foam has enough give that after a few minutes I sink into the chair and the angle feels right.

I would definitely recommend this chair.  I use it for my home office after work hours.