Is there a Printify database anywhere of their vendors with real data?

I use Printify, but because it seems not to enforce any shipping logistics SLAs (Service Level Agreements) with its vendors, I feel we need to keep a separate database so we know how vendors handle what and can set our product expectations and descriptions accordingly.

For example, I would like to know whether a vendor consistently ships their products on the day/evening they print the labels, OR if they are one of the vendors who will print a label (calling it shipped) days before it ever ships.

I would like to know if they use a carrier that does not necessarily scan the receipt of their packages the same day/evening (OnTrac).

I would like to know the real production time/window for a product compared to the published production days on Printify's site.

These and other factors affect expectation-setting for our own production descriptions and customer service.