He has been in action twice in addition to pro-ams.
As a replacement for injured star Cameron Smith, he played well to finish midfield in Miami, and most recently he replaced Jon Rahm for the final round in Houston and scored 5-under-par, easily the best for his team.
"I have been loving it," Campbell said.
"There have been some really cool events. Adelaide was incredible with amazing crowds.
"The guys are really well looked after. One of the things I have been loving is the number of young children coming to the events with the music playing and things like that.
"Normally parents are worried about the kids screaming during someone’s backswing but with the music going, it doesn’t really matter, people making noises, because it just gets drowned out."
There was definitely a more relaxed atmosphere on the LIV circuit, Campbell said.
"If you look at Adelaide and other earlier events, there are probably a lot of non-golfers coming. Here in New Zealand, Covid brought about a massive influx of golfers, including a lot of young people. So if it helps people stay in the game, that’s good."
Campbell has had to be patient in his role as a reserve.
There are three reserves on site at every LIV tournament, each waiting to be called into a team — any of the 13 teams — at a moment’s notice.
A feature of the so-called rebel series was how hard the players were working to succeed, and to help each other on the circuit, Campbell said.
"You look at Phil Mickelson, who is coming to the end of his career but he still works so hard. He is always practising.
"Bryson DeChambeau is renowned for being a hard worker. Even some of the others I thought would have been taking it a bit easier are often the first guys in the gym.
"I see the big names all the time. We go to dinners regularly. It is a pretty tight group out there.
"Obviously a lot of them took some big risks leaving where they were, but everyone becomes part of the family and looks after each other."
The team structure of LIV had been invigorating, Campbell said.
"Professional golf can be weird if you are not having a good week. You are sort of out of it.
"But with the team aspect, guys have got to grind the full week, and you see that after the second round because in the final [third] round, all four scores count for the team.
"So if someone is having a bad week, they are out there after two rounds on the driving range or the putting green trying to find something so they don’t let the team down on the last day, which is really cool."
Campbell’s next LIV event is in Nashville this week.
He will then return to the Asian Tour, and resume battle on the International Series. He is 10th on the order of merit for that series, which offers the winner a full LIV card.
The LIV Promotions tournament is later this year and also offers a couple of chances to qualify for the tour.
By Neville Idour