It's been here much longer than I have -- more than 20 years, I think -- but I had never tried it until reading the raves here about the Columbia sister restaurant. Ordered carry-out this evening and must say, on the basis of this one meal, that it may very well rival Ruan Thai and Thai Square. (I haven't yet tried Nava Thai.) I asked the proprietor to select some items for me off of the Thai menu (which unfortunately is not translated -- there's a project for someone here!). He chose a pork belly and beans dish, a squid with crispy basil, and a "country curry" with chicken. All very, very good. I have no idea whether this meal was at all representative of what the kitchen can do -- or of the English-language menu -- but it was far, far better than any other Thai I've had in Bethesda.