I like that it has been very easy to use both for our internal users as well as external clients we have worked together over time. The team at webmobi link are always willing to help when needed! They also offer additional services such as ad-serving or optimization which can be helpful depending on your specific needs/projects you're working on. It's great having all of these different options available under one roof - not something every publisher should do but definitely an option if you want to take advantage of this type of service (at least from my own experience). We haven't found any downsides so far. If there were some things they could improve upon then maybe more people would know about them. Otherwise everything looks good. Their support staff was extremely responsive throughout the entire process, even after launch. Great place to go for multiple solutions around marketing campaigns.