This was a HUGE hit in a recent family storytime with an audience of mostly kindergarteners. They thought that the final line was hilarious and worth repeating every few minutes as we made pompom dust bunnies. It -is- a cute story about rhyming dust bunnies (Ed, Ned, Ted ... and Bob) who like to rhyme. Bob likes to warn the oblivious trio of impending doom, but the rhymers don't listen well.
Theoretically, this is geared toward the toddler/preK crowd. I'm glad I took a chance with an older crowd.