I just left Hawaii after spending almost 15 years total there. I just retired from the Army. I will tell you that my wife and I ate at so many Hawaiian drive-ins in the islands from the chain restaurants (Zippy's, L&L, etc) to some of best small Mom & Pop joints where they barely spoke English.
I will tell you that Leo's is pretty damn good!! I know there are a couple more Hawaiian BBQ places in the Valley, but Leo's is pretty much on point as far as capturing island flavors and plate lunches. (Hawaiian term).
The staff is courteous. The place is clean and the food is "Ono"!
I will give them a big thumbs up on their BBQ Chicken Curry! There were a couple of places in Hawaii that did that, and Leo's does it also!
Their best value is their family pack! My wife and I get with my folks and try to tackle it. We fail!! LOL!! A Lot of delicious food for a good price! They even have Spam Musubi!!
They will always get our business!