Hey Ian,
I currently use vscode leveraging the Zowe Explorer plugin to manage a few z/OS environments. It is great if you're familiar with more traditional mechanisms to manage systems (submitting a job to get something done, edit a configuration dataset, and issue an operator command).
As for where I see things going, the current trajectory seems to be focused on providing bridges between the way things are traditionally done and how the next generation would like to do them. I feel this is very encouraging for the limitless future of management tooling. As for where I would like it to go, I would like to see more functionality provided by z/OSMF's web interface pulled into vscode by means of a plugin to provide stronger management capabilities from a single pane of glass.
Just to be transparent, I do most of my system management using a combination of SSH and vscode. I rarely log onto the traditional TSO/ISPF interface to do anything anymore. I had been using TSO/ISPF since 2010.
Happy to share my opinions on anything you may be interested in!
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Steven Perva
Sr Mainframe Innovation Engineer
Ensono
Chicago IL
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