There is definitely a benefit for the track. I think it would be pretty unnecessary for the street.
This was my set up on the 5-speed. There was a temperature switch installed to turn the pump on/off at the requested temps. I logged the temps for awhile to make sure it was working.
In my six speed now, the temperature readings are sent to the Pectel/Cosworth ECU and that will turn the pump on/off as needed.
The gold/black fittings are quick disconnects with a dry-break. Made changing out transmissions a little less messy. Came in handy a few times, this one on my girlfriends car...blew third gear in morning practice and made it out to qualifying with a fresh box 2 hours later.
I have some transmissions around with the cooler fittings attached if anyone is looking...