The best thing about accuistics for me was its ability of auto generating campaigns from existing products i need promote so I can focus more time into my main product promotion instead spending hours creating different landing pages manually with no results at end! Nothing but good things said here as long your account manager understands what u are doing he will guide ur way without bothering much!! We were using google analytics before which gave us lot headache while trying out new channels we had never done previously like facebook ads/twitter advertising etc..