The best thing about Sumo was its ability for me as an individual user to be able to schedule meetings with my team members in real time which allowed us all to get our work done without any unnecessary interruptions or delays from other people's schedules! I also liked how easy it was to use once you got used to navigating through different screens/views of the app. It took some getting used too but after awhile everything became very familiar to navigate around easily. There are not much things i dislike at this point since there isn't anything bad enough to say regarding sumo scheduler itself. If you're looking into scheduling software then definitely give sumo scheduler a try out because they have many features available such as video conferencing capabilities so if those are important to you than keep them in mind when making up your decision process. We were using another product before we tried sumo and realized that it lacked.