Wow, what a purchase - my 10 month old Loves this tree.  Yes, as in reviews in the past it is a little wobbly.....but not at first...as the cat gets more and more confident the tree begins to wobble - but never to the point where it would fall over - and I think he makes it wobble on purpose.  I also twisted the top level so that the "ball" toy dangles in mid-air.  He stands on the platform and bats the heck out of it.  The cat was so happy he jumped onto the top platform rolled on his side and gave me kisses!  Great purchase - excellent price - well worth it he uses every aspect - He hides his toys in his "fort" on second level!  Very cool purchase! Very easy to assemble too.