The food itself is okay, if you like Korean style chicken and alternate takes on pizza. The service is downright terrible.When I went there on a group outing, we ordered separately and to go, due to differing schedules that would force some people to leave at different times. It still should have been a simple enough affair, since we had over an hour free.Despite my order being an earlier one, others in my group got their food far before mine. I waited over an hour, periodically asking about my order and being reassured that my order was coming. People who ordered after me yet received their food before me had sat down to munch while accompanying me.Then I was told that they forgot to do my order. The rest of my group had already finished their food, and it was almost time for the group to head back. The waitress and manager offered a very anemic apology, seeming to believe a free bottle of cheap soda would suffice for a wait of more than an hour for no good reason. This is with knowing that it make me waste even more time waiting for food they hadn't even started making.I demanded a refund. They went through a big production of having trouble reversing my credit card charges. I made sure to also keep pestering for a copy of the reversed charges, to ensure I had a record of what happened, and to see the original signed receipt, so that I could cross out my signature and void it. It took them so long just to understand why I would want to do so.Through all this, the apologies, both about the food and about the refund, always came with a claimed caveat that it wasn't that person's fault. No one was willing to take responsibility.If you like the food at Love Letter, go to a different branch. The one in Chino Hills will likely leave you disappointed at best, angry at worst.