The best part about sumologic is that its simple to use, very cost effective for smaller companies with limited resources, yet powerful enough if you want more features but still easy to understand and setup! Nothing really I dislike as such, it does what we need so far - great product! We are solving our data analytics needs using this tool which was not possible previously due to lack of tools. It also helps us in finding out where exactly were the issues have come from within system/ application logs.