Amanda,
The Pondes site is collecting data from all kind of sources, mostly from individuals, trying to make family reconstructions that way.
It can be useful for a quick start to a part of your tree but should i.m.h.o not be used as a primary source.
I consider official archive index records, such as found on wiewaswie.nl and images of original birth, baptism, marriage, death and burial documents found on familysearch to be the most reputable sources.
So I would say use pondes.nl only as initial source and then get the actual data from the sources I mentioned.