In Q1 I tested Plauti, DemandTools, DataGroomr, and CloudDingo. They all work and are good tools. My favorite was DataGroomr, hands down.
Reasons:
It was the most accurate.
It’s built on machine learning, so it learns from you and gets better and better at managing your data without you.
It’s basically zero-setup. Salesforce isn’t my full time job, so speed and ability to be preventative is important.
No product is perfect. The people who work there were smart and helpful across the board, and have already made product updates based on my feedback. That impressed me.