There is a thread on Reef Sanctuary started by Santa Monica that is 76 pages long. Too long to read. but every few pages there are people that have used them and claim success with them.
I particularly like the ones that show the weight of the algae they pull off the mats when they scrape them. Just like a nog shot from a skimmer!
No BB tanks for me. I have not had luck with a refugium, no luck growing cheato, no luck growing other macro algaes, so I thought, might as well continue my winning streak by trying an algae turf filter.
Plus I am in the mood to build something.
Macros grow well in my 60 cube system, but not in the 210/100 gallon system.
The required maintenance on the algae mats doesn't seem too bad, really, not much worse than cleaning out and emptying a skimmer cup once a week or so.
Also, use of one of these is supposed to help get rid of cyano, which I have some of in my tanks. Not a plague, but some, and I run a nutrient poor system, I think.
I was thinking of starting a thread on the Algae Turf Filter build and then see it thru to whatever ending it shows.