I think I'll save on chiropractic bills!
I've only had the product for a week, but I already love it.  I sit all day for work, and had been having lower back pain.  That pain was immediately ameliorated when I put this product to use.  I also play the violin, and often suffered from mid-back pain while playing.  With the Nada Chair, I was able to play for an hour in complete comfort.
Rating: 5 stars