There are a couple of PROs 1.  My 6y/o grandson recognized all of the hard and 'squishy parts (diaphragm threw him).  2.  "It kinda looks cool" when we had it completed.  NOW the CONs.  1.  Holes for large pieces do not align well and when finally in, release really easily (In fact, the bony foot will not remain in hole when "body is placed on stand).  2.  The "squishy organs" stick to everything (except the model) they touch and collect fibers, hairs, dust, etc.  It literally requires a 'dust cover' as soon as the 'organ bag' is opened.  3.  When the feet are put in the stand, the head separates (the clip on top does not snap tightly).  4.  The educational pizza trip stops at the upper small intestines (grandson was waiting on the 'poop).