Leng and his crew had done some smaller jobs on my property - repointing brick, levelling a pathway - that worked out well. But one job, on my porch roof, didn't end well and I had another contractor re-do it.
Leng, shortly after the job, had a family emergency and I didn't hear back from him, at first. But then he called and agreed to give back a substantial amount of the money I paid him and his crew.
He also apologized about things going wrong. I think this is more than fair, and I think customers, judging by this episode, can be assured he will try to make things right.
He and his crew are also cheerful and good-natured. And they work quietly - no boom-boxes to entertain them, and that's a relief. They thoroughly cleaned up the site.