Our current number two goalkeeper returned to Spurs Lodge on Monday having lifted the Gold Cup as USA skipper in California just two days earlier.
It was a fantastic tournament for Kasey who led his side to five straight wins and kept four clean sheets along the way.
Battling it out with Blackburn's Brad Friedel for the USA's number one spot, Kasey says going out for the tournament has done him the world of good for Japan and Korea this summer.
Back in the slightly more bitter climes of Chigwell, Kasey said: "I think it's done me a fantastic amount of good to go out, play five games, concede one goal and win the tournament. It can't really go much better than that.
"It worked out really well. The team was fantastic and we kept improving each game and that's all you can really ask for."
The USA were somewhat of a surprise package after coach Bruce Arena named a young, relatively inexperienced squad for the tournament held in Pasadena and Miami.
Kasey added: "He now just needs to find the team that works the best.
"He found out a little while ago that throwing the best individuals out there on the field doesn't guarantee victories.
"If you can go out and get a team working for each other finds a way to win and that's exactly what we did in the tournament."
So what about that change of climate? "I'm tempted to go straight back to Heathrow and fly back to LA," as the wind and rain blew into Spurs Lodge.
"Most days it was between 65-70, there was a cloud in the sky two days and it rained one day - Southern California in the winter, you can't beat that!"
Kasey Keller reckons his CONCACAF Gold Cup triumph with the USA last week has helped push his name forward for the World Cup.