I'm sure there's a value proposition in there somewhere, but looking at the way "software as a service" type models have been abused once users are committed and specifically looking at Microsoft's track record with things like the Zune DRM debacle, I think you'd have to be out of your mind to transition your company or team over to this.

I recently transitioned to office 365 a year or two ago. Boy that was a huge mistake. Even though I still have 5 shares available, apparently they require office 365 users to login once a month, or they'll lock you out of your own software. Which makes zero sense because since I still have shares, there's not really a viable way to abuse that.

This recently screwed me during the PG&E shutoffs and easily cost me $1000 in downtime for me and my team.