When we were in Dominical, our scheduled ride to Sierpe never showed up....we went to the Dominical Information office....and they were EXTREMELY helpful. The owner of monkeyridecr was there (who is from CA and spoke fluent English) and they called our driver....and arranged for him to meet their driver halfway....at no extra cost to us. They worked out the pricing between our driver and their driver....and it all worked wonderfully. We were on a tight time table as we needed to catch a boat to Drake Bay. Really great customer service.