Hi Brian,
I'm reaching out because you tried Kaizena in the past, and today we're making a substantial improvement: I'm happy to share we're introducing a fully-featured Google Docs Add-on that lets you record voice comments, embed re-usable lessons, and track skills directly inside Google Docs.
You can find the new Kaizena here, on the Google Add-ons store.
And here's a quick preview of what it looks like (be sure to enable images):
Other than making voice comments more closely integrated into your workflow, students will now be able to edit their work immediately after receiving your feedback, instead of referring to a separate copy on Kaizena.
I sincerely hope this makes providing high quality feedback to your students more efficient, enjoyable, and effective.
Wishing you a happy new year full of feedback and learning progress,
Maxwell Brodie
Co-founder & CEO, Kaizena Inc.
P.S. feel free to reply with any questions - we're always happy to help!