My 7 year old son made one his main as soon as he had access to them. He has fun with it, so that is enough for me.
Also, they aren't rabbits, nor so far as I can tell are they a copy of Ratchet and Clank. They are anthropomorphized Fenec foxes. A type of fox with huge ears that lives in the Sahara Desert.
https://en.wikipedia.org/wiki/Fennec_fox