I've been curious about the new G3s & G6s. My LFS said that even getting them in their store was difficult because they had to buy 3 of each just to get their foot in the door. I always am looking for the best options in filtration, but I am wondering if one G6 is better than 4-6 fluval 404s. They are expensive to say the least. Just wondering if anyone has had one up and running long enough to give a legit review of them.