I have been working with them for almost two years now, they are very professional team that know what to do! They always deliver great results!! Nothing really specific but sometimes it can take some time because you need patience when using this software (it's not easy).
It is worth investing your money into premium packages as well cause everything will be easier if there're enough resources available at hand :) We use hypemetamobile platform mainly from campaigns management point-of view - tracking all our activities like impressions/clicks etc., targeting people who visit certain websites or share content about particular topics so then we create custom landing pages where users click before being directed elsewhere within Facebook itself;.