I've been singing the praises of Kway Tiow (83-47 Dongan Ave., near Broadway, Elmhurst, Queens 718-476-6743) for a while on this site. I consider them to be by far the best Thai in town...pulling off the duel trick of authenticity AND deliciousness.
Sriphraphai (which I was actually first to write about, so I don't dismiss it easily!) is very authentic and sometimes delicious, but as far as I'm concerned, it doesn't come close.
Guess what? They're dying. No customers. They get clumps of clientele once in a while, traffic picks up on weekends, but in general they ain't making it.
Places like Bo that hang on forever in spite of dire straits can make us complacent. Kway Tiow could just...just...CLOSE at any time. If they do, it'll be a disaster (and set a bad precedent; I can just imagine other Thai restauranteurs saying "See? we TOLD you we can't get away with serving the real stuff!").
If it closes and you never ate there, you'll rue it forever. Please, folks, let's make this another chowhound mission of mercy. Go there, bring LOTS of friends; let's keep alive this one bastion. Come to think of it, I'll go get some takeout right now.
Remember: fried appetizers and soups are nbot recomended (soups are ok, not great, some of the fried apps are pretty lame). Go with specials (jump on the barbecued chicken if offered), noodles (all are great), chinese broccoli with crispy pork, larb, and the steamed bread dessert. And, as someone pointed out, their curries are HEAVY on the coconut. I happen to like that.
it's an easy subway ride..take R train to Elmhust Avenue, then walk toward (and go under) the railroad overpass. Dongan is a block or two past the overpass.