Pematangsiantar is not really a tourist place. I was kind of surprised to see this temple, with the biggest statue of it's kind in Indonesia in this town. Nice place to visit, should you be in siantar. As far as I know, no entrance fee is charged. Actually when I was there, besides some people working on the roof, no other people were present at the temple. It's really impressive to see the big statue, and the clean temple in the middle of this busy chaotic city.
I can't rally give directions or an address for this temple, because my friend was just driving me around on his motorbike when we endend up visiting this place.