Desiam is great. The lady who owns the place super nice and attentive. Wait staff used to be surly, but the owner has done some excellent hiring recently, including a new chef, so previous comments about the food should be disregarded. Plus, we enjoy Thai and I've never found their food bland or unapetizing.
My wife and I eat here often. It started as tiny then absorbed the business space next door. No rush here. Linger. Try spicy Ginger beef or fish. Sticky rice is sublime. Enjoy.