Tim, it's the best money you'll ever spend, but you need to do some homework to make an informed decision, especially regarding the sub-10 micron stuff,very nasty. In my opinion the guru on dust collection is Bill Pentz. I met Bill during the construction of my own cyclone system and he is an amazing individual. In a nutshell, this guy has put together an incredible site that dimisses many of the myth's of dust collection and devoted many hours to development and research. You would be amazed how much of dust collection is marketing and very little based on fact or actual efficiency. Bill suffers from a severly compromised respiratory system and has decided to share his information as a public service. There is a lot of info to wade through, but this is your health and well worth setting down for a couple of hours. Good read.