Don't attempt Disneyland without it! With the help of this book we never queued for longer than 20 minutes for a ride (and mostly just 5 to 10 minutes) and we went during the school half term holiday (end of May.) With planning beforehand and quick glimpses at the book in the hotel on an evening we knew just when to queue, when to sprint and when to sit back and enjoy a coffee. We ate at Planet Hollywood one night and saved over 12 euros on a meal for a family of four by showing the voucher in the book. Even if you don't use the vouchers it's still well worth the money!