When charging from a computer USB port you don't get the characteristic electricity in the battery graphic so it doesn't appear to be doing anything, it is however still charging the Vita. Other than this the cable works fine.
Our 8 year old daughter loves these books and has had various members of the family read this to her aswell as reading it herself. I have enjoyed these too, a classic and imaginative fantasy world, C.S.Lewis meets steam punk and Tolkien. Wonderful.