It's not kart life. It's the skusa super nationals event that is run in Vegas in the Rio casino parking lot. Biggest karting event in the country. They have waiting lists to entered because it fills the 80 entry max so quickly.
No I havent. I have worked for people that raced in it though. A few classes fill within 5 minutes of registration opening. I was there 2 years ago. Nothing like it in the world. The best from many factory teams come over to race shifter.