Option to delete remote branch on Gitflow Finish
The Gitflow "Finish Feature" (also release and hotfix) has an option to "Delete branch". But this only deletes the local branch and not the remote branch. This leaves a large number of remote branches out on the server that will need to be deleted manually later. My suggestion is to add an option to delete the remote branch as well when finishing a feature/release/hotfix.
Our team transitioned to GitKraken from Sourcetree, and this was something that Sourcetree does with its Gitflow finish feature (and we got pretty spoiled by it.) :-)