I really hope to be able to give the best rating for this, but unfortunately I can't.
The staff are actually friendly and helpful. The room is spacious, and the food is tasty (only 2 options for breakfast though: fried rice and sandwich).
However, one thing that bothered me so much is the surrounding. This place is so close to a praying place, and for someone who is trying to find a quiet place, this maybe not the right place for you.
However, this place is quite close to Borobudur. You can walk maybe around 20 minutes to the Borobudur entrance.