We were lucky enough to have the owner (THE Biking Dutchman, himself) as our guide so definitely a bonus there. His support staff was great during our tour as well. We arranged the one day tour during a 24hour stop over in Quito. The owner's wife, Ana, made special arrangements to pick us up closer to our hotel location than downtown Quito. If you are staying in downtown Quito the meeting point is very convenient. All of this was done via email and we owe a special thanks to Ana for making it so easy to arrange and accommodating our special requests. She also cooked a delicious lunch and dessert for the entire group.
The tour consisted of a rather steep down hill ride from just below the glaciers of Cotopaxi. Then a flatter more leisurely group ride through fields littered with volcanic boulders. People of all ages and biking skills were in our group and no one had any issues. The scenery is absolutely beautiful for the entire tour. There are a few uphill areas but the group stopped to keep everyone together and plenty of people walked their bike up the hardest of areas. We felt it was a very scenic, enjoyable, well organized trip and NOT rushed from point A to B like some tours can be.
All the equipment (bike, helmet, gloves and jackets if you don't have any with you) seemed to be in good working condition too. I highly recommend Biking Dutchman if you want to experience Cotopaxi via an affordable, well organized day trip from Quito or the surrounding areas. Suggestion- Be sure to dress in layers as the top of Cotopaxi is cold and it gets a lot warmer as you descend.