We (couple, Netherlands) did a day tour to Borobodur and Mendit temple (Magelang area), and Prambanan, Candi Sewu and Ploasan temple (East Yogyakarta) all in one day with Narto!
During the trip Narto told us his valuable experiences with the area as a local. He was also waiting for us when we visited all the places so that we could drive further directly when we were done. Narto helped us with ticketing service, and also brought us to a nice cosy place where we had good food. If in Yogyakarta area, do not doubt and choose Narto for your tours :). Thanks again Narto for the perfect day!