I like that they have an excellent team of people who are always willing help you out, even if it's just answering simple questions about their platform! They're very good at keeping up with all changes in ad tech as well - which makes sense since this industry moves so fast sometimes (as does everything else). Their customer service has been great but there hasn't really ever seemed anything wrong or 'off' when using them; however we've only used one product from M&M thus far- not sure how other products compare yet? We haven’t had any issues while working through our account setup process either way though :) The benefit was being able see what my competitor ads were doing before deciding whether i'd want something similar running alongside mine etc.- also helps me understand where traffic comes via too.