I really like Erawan which is a few blocks away at 123 S. 23rd St. (23rd and Sansom St.). They give you a salad, appitizer and main course for around $8 at lunch! Great deal. I think it is $15 for dinner. The food is great, the decor is nice (and very orange) and the service friendly.
This was actually awesome. Small place, very attentive, very good selection. Great portions. We got several orders of the 'Wonderful Crispy' appetizer, basically a fried chicken wonton, which was awesome with a very spicy duck sauce. We also shared some BBQ squid, great flavor and huge portion, and some of the steamed dumplings, which were served with a solid soy-peanut dipping sauce (that we dipped every garnish on the table in).
I got the Seafood Spicy Noodle, with flat rice noodles, with shrimp, squid, scallops and mussels, with a lot of Thai basil and chili flavor. I am a big eater and I had a sizable portion for the next day's lunch. All that for $15. Everyone else loved their meals, from chicken pad thai, to pineapple fried rice, yellow curry and others. Being a BYO, they still keep the prices down. Charming little spot, a little tight, service about average, pretty terribly laid out bathroom, but overall, for the price and the quality, I will be back.
i'll have to try it again. on my last visit i was severely unimpressed with with everything except for the stunning art, particularly one piece of the italian market by one of the waiters. upstairs there is a fascinating little gallery as well. my food was bland, but then again it's been about a year. i owe them a return visit...