I used this guide to walk the Camino Frances in May and June of 2018 - the busiest time of year for walkers traveling the full length of the Camino Frances. I would definitely use it again for a future walk, and would seriously consider other guides by this couple.
Pros
* Great overview information - from packing and planning to the page or two of simple Spanish phrases. (Granted Google Translate outshines anything in print, but there were times those couple of pages really came in handy.)
*Nice suggested route. Some guides are less suggestive about stopping points, but these folks picked out towns that had a lot of accommodations. Many stopping towns were offset from the other big English guide (don't remember the name offhand) so as to spread out walkers along the Way. Nonetheless, it was easy to adjust stopping places so as to have mornings in very small towns where there was no morning herd to contend with.
* Realistic elevation maps. Some other maps I saw with elevations for certain sections set up the height/length measurement so that climbing 1000 feet over 5 miles practically looked like you were trying to summit Mt. Everest. This one did not.
*I really appreciated the bit of tourist information about towns along the route and the small maps of mid to large size towns. It was so handy for experiencing the culture and finding my way through some of the bigger towns. Most other guides I saw didn't have those, so I often could share bits of history about towns that other were unaware of.
Cons
*It's a little heavy. No, I'm not going to rip the pages out as a walk, which is a common suggestion for people obsessed with weight. It was my "journal" of my days and route - every day I made notes about how far I went and where I stayed. Lighter paper would be nice, though. Or at least make it water resistent so the weight is a little more worth it.
*None of the guidebooks I saw or heard about from others while on the Camino seem to give more than a passing mention of rest days. This one did mention it, but still, walking for 30-40 days is actually best on one's body when there are some rest and reflection days included. (I'm an Appalachian Trail aficionado, and yes, it is standard for long distance hikers to plan for rest days - typically also resupply days.) While the Camino is about the journey, there is a tendency of pilgrims once they are actually on the walk to think too long on how far and how hard they can go. Friends of mine who walked the Camino about five years ago were near shocked when I mentioned taking a taxi "backward" on the Camino to visit a friend with an overuse injury -- backward?? A small section devoted to this and identifying some good locations and/or strategies for identifying places to stop would be nice.
*A German friend on the trail had a neat feature in his book that I didn't notice -or at least hear about) - in English books. His book noted not only the number of beds in an albergue or hostel, but the layout of the space... like 30 beds in one great room vs. 10 beds each in 3 smaller rooms. That occasionally came in really handy in picking the best space to stay. I would love to see that in a future edition.