I like the ability to get a quick overview of search activity and see how my queries are performing. I also like the "heatmap" feature and have used it to see what queries are not being used. Sometimes I have to use the "advanced" settings to make it work, but it's a small annoyance. I also dislike that it doesn't index certain terms. However, I'm sure they're working to get this rectified. It's a great tool for tracking and analyzing search activity. I use it to track specific terms that are not performing as well as I'd like.