We had looked into doing one of the courses at Bols prior to our trip, but upon realizing that we didn't have enough time we did the next best thing and booked the tour. The tour itself was really quite educational, the 'smell' section being the most interesting. The cocktail and the two shots of liqueurs/genevers after the tour was finished were excellent, as you were able to choose exactly what you wanted from a list of over 20 cocktails. Definitely worth the money, even just to be able to hang out in the very cool mirrored bar at the end. My boyfriend got a kick out of the 'make your own flair bartending video' at the end.