I gave it a try a few weeks ago tbh, I'll give it another shot tho. I mainly use their Web chats since that's easier to use and previously, qwen, deepseek, kimi, all were unable to output proper docx files or use skills.

Try loading the models up in a coding harness like Claude Code. There's a few docx skills listed on Vercel's skill index.

https://skills.sh/tfriedel/claude-office-skills/docx