We recently got the Graco Baby Jumper from a friend and we couldn't have received a better form of entertainment for our daughter.  She loves it!!! She is 6 months old and figured out pretty quickly how to jump around in this gadget.  She enjoys it so much that her little legs are making the jumping motion even before she is settled into the seat on the jumper.  Sometimes she is placed in a stationary play thing and she makes the jumping motion and wonders why she isn't moving like she does in the jumper.  It is definately her preferred source of entertainment.  The first time we used it,...