Datto RMM Opinions?

Has anyone ever used Datto RMM? Watched a few webinars and it looks nice but I would like to gather other people opnions before pulling the trigger.

I’v looked at their docs and marketing info from a competitive standpoint but head to head with FreeNAS FreeNAS is the winner. Datto is competition but long term TCO makes FReeNAS more attractive along with ease of admin, updates and upgrades. Datto’s resellers are pushing hard on product most are MSPs.