+1 here, tested on a Macbook Pro (M2). I mostly focused on the Data Editor, and ran into a couple of issues that can be addressed in v1.4.1:
1. I need to run the Ωedit server (which powers the Data Editor) on a different port other than the default port 9000. Intuitively, that would be a global extension-level setting, but that didn't work for me. What did work was a local setting to the launch.json file. I filed this ticket to look into the issue of global and local settings: https://github.com/apache/daffodil-vscode/issues/1127 2. The Data Editor itself worked fine, but when I went to close the last Data Editor tab in VSCode, I got a popup that said that the Ωedit server failed to shutdown, but the process table shows that the server did indeed shutdown. I filed another ticket to look into the issue of this popup: https://github.com/apache/daffodil-vscode/issues/1128. This release has a lot of good updates.