I currently Advocate my dogs because of a high prevalence of lung work in our area. It works well and so far we have not had a problem with any nasties.
However, they both hate it and it really is repulsive smelling stuff to have to deal with every month. And worse if I mess up and get it on my lip!
Does anybody here use natural parasite control? Was looking for experiences and also welcome any comments from our regular vets 
I could use it in conjunction with Wormcount screening but it would work out more expensive and is obviously also quite a faff to do screening every 6 weeks or so for two dogs.