Perhaps this should be tested in the system spec too ("I can rename a product and still see it after saving"). But I'd like to find the compromise to avoid bulking up system specs too much. I think it's covered well enough by the reflex spec?
(For now at least,) we use one big standard Rails form, and ModelSet to update each record.
Submitting with Reflex allows us to manage the loading state along with the rest of the page (although I would rather use the built in HTTP POST standard).
Aria-label makes it a bit easier for testing (and accessibility software of course!). Technically it should have been aria-labelledby="id_of_column_header" but that would have resulted in more HTML and processing, which seemed silly.
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