It's expensive and over-complicated. For a while, I thought it was just going n to sleep mode to save energy, but I turns out it just doesn't work. Lots of flashing lights, no heat whatsoever. Same your money, buy a basic one.
A beautiful book, imaginatively illustrated. Classic and a must for every younger reader's bookshelf. My little boy read it when he was 6/7 and enjoyed reading it on his own. Great for encouraging young boys to read.