Pros: It works
Overall Review: I bought to to adapt a USB to serial dongle with a DB-9 serial output to an instrument that required a DB-25 serial interface. It worked.
The one I ordered somehow shipped to a random incorrect address. I wrote one e-mail to the vendor documenting the problem, and they promptly shipped another to the correct address. Problem solved. So kudos to them for handling that as well as anyone could ask.