With regard to CycleTours, while I myself have not used them, I love to read a travelogue by Harlan Hague who went on one of their bike & barge tours in Holland and he spoke very highly of them.

http://www.softadventure.net/hollandbikeandboat.htm

I requested some time ago the CycleTours tour magazine and it reads well :)

Hope this helps? :) Megan Brisbane, Australia