It's easy enough that I can use with no prior knowledge, but powerful as well! The ability to see what all columns are being grouped by makes this tool one-of kind (or at least my version).
There really should be an option where you don;t have to specify which column(s) make up each node/cluster - just let me know how many nodes there will need to end up making so i dont waste days figuring out why its not working like expected!! If your looking into grouping data then look carefully before deciding if they offer too much flexibility versus ease & speed. Great product overall though we ended needing less than anticipated because our needs were simple :).