Why dont you get a few sample, i know the EzFlow UK team would be more than happy to send you a sample, if you PM me your details i can arrange this for you.
I wouldnt buy anything before trying it out for a while, as Geeg said, see how it fairs on yourself, get a feel for the product, you can then make an informed decision knowing you have tried it out and like the product before you invest your hard earned money.
HTH