The maps are excellent and I enjoyed a tour simply plotting a route each night for tomorrow's ride, using numbered nodes. I hardly ever needed to consult the maps during my day's ride. I am so jealous of the cycling infrastructure you enjoy in Holland ;-)
I could not imagine planning or riding a tour in Holland without these maps.
One plea I would make is to offer an English translation of the information booklets which come with the maps. Surely international visitors would appreciate this.