Opinions on Anaya Cuaderno del Peregrino guide and 'Moleskine' type notebook

When I walked the Camino this autumn, I brought my Rother guide in English. My friend had the Brierley and loved reading up on everything, so I never touched mine and in the end I left it for someone else in Puente la Reina. Then when she had to leave I had no map and bought the Pili Pala wire bound maps, ripping them out as I went and only had the small strip map in my pocket. Many of the Spanish peregrinos had a small, black bound book with them, and I thought it was just a notebook, but it turns out it has a stage map across two pages, then four pages of lined notepaper, then more maps and height contours. It even has a removeable black booklet in the back with info on facilities like cash points, shops, albergues, hostales etc, some even with phone numbers, for all the little places you go past. I couldn't find this book anywhere en route, but bought one in Santiago thinking I could use it as a reminder of where I had been and the distances between places, making notes of albergues I had stayed in, people I had met ...

A great plan, and still I can't seem to do it, because I keep thinking it might be a great guide for next time. (Oh, yes, there will definitely be a next time!) Unfortunately I didn't speak enough Spanish to ask the peregrinos who used it how they liked it, so I was wondering if anyone on this forum has used it or heard anything about what it's like as your main guide? The link to the book is here: http://www.amazon.co.uk/Cuaderno-peregr ... 8497769775
They do guides for other routes too, and the size is just perfect for your pocket or bum bag as it measures only 14 x 9.2 x 1.7 cms and weighs only 180 g!

Any comments are much appreciated!

For those who might be interested I have taken some pics of the inside of the book so you can see how it works. It is dinky and compact and should work as a guide and also notebook, at least if you have walked it before and aren't worried about minor changes to the route (if there are any) as it is from 2010.