Assembly was very easy.  The back and foot massager are excellent. The hand held controller is easy to operate and has its own pouch that hangs it to the side and out of the way.  The chair can tilt back which makes it very relaxing for the user.  Things that can be improved on are: 1) The hand held controller is not lighted and reading the options are difficult to see in the dark. 2) The air massager cannot be adjusted to the user body size therefore cannot squeeze some body parts properly.  3) The neck massager is not that effective.  4) There are no shoulder massager.
However, for this product, it's worth the price and functionality.  The design is elegant
and well made.  I enjoy using it and my wife really loves it.