Overall, we have been extremely satisfied with Silverpop, the platform, as well as the high level of account support we have. Outages are rare, if any, and we are always notified well in advance if there is a release (usually once or twice a year), that could short term affect the speed of the system. For someone looking at Silverpop during the selection process, some key questions to ask could be how they handle import of data, whether email lists or data from your e-commerce platform as well. What is on their roadmap that will help handle more of the 1:1 messaging and trying to prevent recipients from getting too many emails in 1 day more easily - currently a bit manual to manipulate each individual query. Silverpop is a self-service platform, so someone looking for more full-service should ask about the level of support they might receive and if they offer any full-service features.