Stuart, I started off using the complete Dry Fusion package. I've tried other things as well such as Solutions but I am yet to find any one product that outperforms all the others in every situation. It's still Suck it "n" see.
I have a property manager client who insists on Activator or Bactoshield because the houses "smell like they've been cleaned". He feels that this helps to let the properties.
I've been using Cimex since October and have only tried Releasit products, which I've been really happy with.