I find it's a lot better than it was. When it first launched it wasn't a patch on slack, however now it was giphy integration...
I believe the plan from our lot is to get rid of shared drives where possible and get everything into OneDrive/SharePoint. Box is due to be decommissioned first, then I think they're gunning for the drives. In a lot of ways this is actually doing us a lot of good in showing certain luddites what is possible / why certain things need to go in the bin.