I recently tried Saigon Grill for the first time, while visiting a friend on the Upper West Side. It is is the top-rated Vietnamese restaurant in Zagat's, and has also received favorable mentions here at chowhound.com. I didn't think it was all that! Does anyone agree with me that Saigon Grill is overrated? Also, can anyone recommend a really good, authentic Vietnamese restaurant, preferably cheap? Are those places in Chinatown near the jury-duty spots any good (I forgot the names offhand)?