As a western suburbs resident, I've lately been on the lookout for good Thai food and hadn't found anything I'd enjoyed until recently. My husband and I have been very much enjoying Tom Yum Koong in Arlington (there's also a Medford branch, methinks).
The service is wonderful. Cheerful, accommodating, helpful. We have ordered delivery several times (and they deliver quite far--we do not live nearby), and once we forgot to put in our customary rice dish order. Five minutes later, a perky woman called us to ask if we'd forgotten our "regular" order.
We tend to do delivery but have also dined in the restaurant, which is clean and bright, tended to by a very friendly host. Very much enjoyed steamed and fried dumplings, shumai (only had steamed, not fried), and delicious, light curry puffs. We've also tried the curry cake appetizer, but found it sort of soggy/chewy -- wouldn't recommend.
What I WOULD highly recommend are the soups: delicious, tantalizingly spicy/sweet tom yum and tom yum koong soups. Their "signature" entree soup is Tom Yum Noodle--a sinus-clearing, sweet hot n soup soup with noodles, crushed peanut, scallion and seafood. I would want to get a cold just to feel justified in ordering this soup! Absolutely wonderful, though I do recommend it more for dine-in as delivery is "assemble your own" and noodles can get dried out easily. The broth on its own is divine.
We have also sampled and enjoyed a very respectable "hot tangerine" chicken and wild boar basil in hot chili sauce--both excellent (though again, eat-in portions are recommended--this time because delivery portions seem smaller). Thai noodles in red curry and massaman curry are both very good, too. Crisp chicken basil is a house specialty comes with a really zingy green sauce that's great lapped up on its own.
Some menu items are lamely named--er, "tilapia fantasy"? "excited eggplant"--but this place is just like that--cute, friendly, warm. Great food. Highly recommend it.
Tom Yum Koong Restaurant
11 Forest St, Medford, MA 02155