We took advantage of this halfway through our part 2. Given our age and recent major surgeries, this was a boon. We carried only what we needed on the trail, and left the rest in a duffel for service like RapidBag in France, Express Bourricot over the Pyrenees, and Jacotrans in Spain to cart to our next destination. Reliable and very reasonable. But, if changing plans, be sure to phone your service rather than leaving a note on your luggage (easily overlooked by a pickup driver).