There are so many suppliers to choose from in the San Diego area that it makes it tough to choose the "best" one. However I went with GST because their Poway location is very conveniently located near my office. Whenever we need a turf for a job, it's a quick drive and we are able to walk in without worrying about shipping costs. When there is so much competition, small things like shipping cost add up and that's what made us choose GST as our primary supplier. Obviously the products and customer service are solid as well, just a well balanced company.