Renders come back in about a minute from my 3D model, which is expected from AI. Quality has improved with this update, better precision than earlier versions, closer to what I'd want instead of regenerating the whole image again and again.

The tool I would recommend is Point & Edit. When my model has unfinished areas or wanted to change furniture, I just edit from the rendered image instead of going through the 3D warehouse. Best for exploration and quick revisions. Not a full process replacement, but for moving fast, it works.

Extension is free to download from the extension warehouse. If anyone have any other recommended tools, feel free to share. I'm still exploring and trying around.