I know it’s a payment/donation system in which trust is involved, but as I can recall I have good experiences with this system. In the time I was a flotilla skipper on sailing boats around the island of Corfu, my (ex) girl friend and I used this donation system to get payed for our dinner nights on the boats. Evenings where she was preparing all the food and I was building rafts out of a couple of dinghys (little rescue boats). Great evenings, where our guests always rewarded us more than we expected.
Knowing that, I have the confidence that the services and products of Routaki have so much quality, that I know for sure that guests are willing to pay for it and will do this with a proper amount.
Crete will sell itself!
The only thing I will build-in, in this user system is that the guest agrees to receive five reminder e-mails, if necessary, asking for an appreciation.