I've been here numerous times and every time I'm pleased with the service and quality of dishes. It's better these days with a smaller line, so just make sure to go at a fairly earlier time.
It usually takes only a minute or two for the hostess to seat us down and a waitress to approach us with menus upon seating. The servers are generally well acquainted with the menu and are open to recommend dishes if you're unfamiliar with thai food. My personal favourite is the khao soi and green curry (the spicier the better!), washed down with some thai iced tea.
Overall, can't go wrong with any items on the menu!