This was our first chance to try the recirculating chiller, which worked great. With the rush to get the kettle off of the stove and next to the sink we didn't take a time mark to know how fast it exactly cooled, but it seemed like about 10 minutes to get down to 75F. We could have finished faster if we'd added salt and ice right at the start of the cool. Plus doing a little more mixing of the wort to get the hot stuff on to the coils would have helped too.
Regardless, here's the chiller in action and a brief overview: