I have been working with Zex for about 4 years now, during which time we've built up an excellent relationship. They are always willing to take the extra step to ensure that each of our campaigns are successful. They also understand the value of social media marketing and will use it appropriately for our needs. Sometimes their response can be slow but this is only because of how busy they are. At this stage I think it's great. It's not really something negative to say. I would highly recommend them to anyone looking to build strong professional relationships. This is definitely a win-win situation! Nothing really to complain about here. This is one of the best. A lot of work goes into developing long term partnerships and Zex have done a really good job at getting the ball rolling.