I like that they are always looking out ways of improving their work as well how much experience they have with online advertising products such as google ads etcetera. It's not very easy at first but if u stick with them everything will be fine :) They're also great people, really friendly team! Nothing bad so far i can say about this particular agency. Not too negative things either - sometimes when there might seem nothing special going around or even some small detail could look wrong (in my opinion). If your website isn't performing then maybe consider hiring these guys who know exactly where should go next step after all those tests were done?