I have found these folks to be the most singularly focused, most genuine group of people I have run into in my lifetime.
The passion with which they embrace bringing clean water to all parts of the world (Haiti, Costa Rica, India, many Arab countries, Africa, and South America via the USS Comfort navy ship) is unsurpassed.
While they desire to show God's love as a Christan group, they are in no way "stingy" with their resources and restrict their activities only to Christian groups. On the contrary, they are eager to show Christian love to groups of other faith backgrounds and have worked hand in hand with Muslim groups in Pakistan and elsewhere to meet the needs of all peoples, without respect to their faith traditions. To paraphrase thier mission ... "It is hard to evangelize to people's soul when they are dying daily due to the diseases carried in dirty water"