The chairs were delivered exactly when they were supposed to. They were easy to assemble.  The chairs function as described...the rocking and swivel actions are very smooth.  The heat and massage is a great feature, although the massage seems a little louder than some others I have tried.  The only reason for 4 stars instead of 5 is that the cloth on the chair is colored to make it look velvety in pictures.  I think it cheapens the overall look of the chair.