Sorry but I dont think you are going to have many people on here that have tried that particular product. But, I can tell you that the only fans in my experiance that are quiet are pc fans (worthless in BIG areas) and dead fans. I have my system rigged so that during the day the lights and fans (not pc intake/exhaust fans) are off. You cant hear the pc fans at all. But I have a growbox. Bigger systems need more than a 30cf/pm fan can provide.
Good luck with your endevors.
