I was afraid to try PowerShell on a Failover Cluster, but today I finally did, and it worked very well. I needed to move a DFS from one node to another. So I opened PowerShell As Administrator, imported the module "FailoverClusters" and ran the command:
Move-ClusterGroup -Name staff -Node filesnode1
It worked perfectly! The cmdlet didn't return until the DFS was back online, and the returned object said it was online. Easy!