This was a clever, humorous little story that my niece, nephew and I enjoyed. It was a little lengthy, so I was surprised that my nephew's four-year old attention span lasted for the duration of this book. The kids laughed several times, and didn't seem to tire of Blast Off Boy and Blorp's misadventures as participants in the intergalactic student exchange program. In fact, they wanted me to read the book a second time.