Was booking a Vegas to New Zealand trip for my wife and me next April. United’s site showed about 18.5k for two, but I spotted a similar itinerary on a third party for 15k. I called GS to see if they could match it.
Not only did they find the same fare, they helped me lock in a guaranteed Polaris companion ticket and used just a few plus points. Ended up getting the whole thing for a little over 12k.
Honestly one of the better GS calls I’ve had.