What exactly do you want to know? I bought one from BRS and have had no issues at all with it (along with 0 phosphates). I use regular GFO, also from BRS.
when I setup my new tank 2 months ago I had .56 phosphates. I have a little fishes 150 with BRS gfo and it is now at 0. I am seeing a little green cover on the rocks and not sure why but at least I have no phosphates.
thanks. im just trying to figure out what to get. im starting to get phos algae. I guess my real question should have been about the media. but it seems like GFO is the way to go. thanks guys