Just a couple of suggestions to make MaxtoA easier to work.
Lights
Quad lights have this annoying thing with the targeted line.
This light is 1 meter wide still you get a "targeted" line that is 15 meters long. This makes really annoying and difficult to work with scenes with multiple lights.
Materials\Viewport
A collegue yesterday asked me how can you show a glass material on the viewport. Turns out if you have a Arnold glass shader on the viewport is just a white block. Meanwhile the Physical Material can do this fine.
AOV
Would be possible to make the AOV output folder be the same as your render output? Just a simple button to copy that setting. A couple of times I overwriten files because I forgot this tiny detail.
Check the solution given by Stephen Blair - https://youtu.be/BK7in7acChg
Are these things possible to do? This is feedback based from people working with Arnold in production.
AOVs
Use the RenderFileName and RenderFolder tokens in the AOV Manager
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Short video walkthrough, for those who might want it:
AOV Manager output should really default to the <RenderFolder> token. Not sure why it's an absolute path by default, this must be some legacy from a previous version before tokens were introduced?