I have used this product for several years now with great success in my organization's email campaign management system (Campaigner).
It is easy-to use software which allows us as marketers/campaign managers full control over our emails at all times! There are some minor issues we've had recently but nothing major so far - it just requires regular maintenance like any other piece o' equipment :) We're using Alyzers Email Tagger along side another tool called SmartTargeting Suite where tags can be set manually if required instead when sending out via an automated method such has Marketo etc.. This gives me complete flexibility allowing multiple methods within 1 platform without having duplicate entries across 2 tools / systems!! You dont always know what will work best until after its sent off & delivered however being able to see results right away helps immensely during testing stages too ;) The ability ot tag specific segments depending upon their actions throughout different channels egs webpages clicks throughs leads generated sales won lost ect.