David Oh is a stand up guy, very professional and a great coach. If he's coaching your kids team, I would recommend it and I foresee them eventually being part of ECNL.
I had my son play for another coach for 2 years and a lot of shady things transpired, our team had a guest player or two for every tournament and games which never trained and took minutes + development from our bench players. One thing I'll n ever understand as how trainings are at Ayala park which is a great soccer field, but the actual games are in San Bernardino which has some of the worst fields I've ever seen.
As mentioned above, there's a lot of turnover but on the bright side the club fees are not as expensive like Pats/LFC/Slammers/Strikers etc.