IMHO cost to performance Haida is rather good after reading up the reviews and pictures taken (using various brands) from various sources and comparing them with my personal result with it. I am not a person who would just get the best nor so stingy to just get the cheapest, buta again each of...
I got my self a set of Haida from photosphere (http://www.clubsnap.com/forums/showthread.php?t=1259209) as a newbie i am pretty pleased with the results produced using their NDs and CPL.
Block it's way out, when the owner come to pick up their car collect parking fees like $ 50 an hour with a minimum 10 hours of parking.
Don't get mad, get a profitable solution....