I just moved to Paris and had dinner last night in the 20th off the Belleville metro stop. My husband and I ate at Tin Tin Vietnamese Restaurant. It was crowded and we were hungry and it was quite cold so we decided to stop. It was only ok. The service was prompt and friendly but the peanut sauce was syrupy and the spring rolls were leathery. I probably wouldn't go back. I am originally from Houston, TX, a city which has fabulous Vietnamese restaurants, so perhaps I am a little spoiled nevertheless, I am taking Tin Tin off the list. The only real perk is that it was cheap: 20 euro for one appetizer, two Bun bowls and tea for two. There were several other options in the area including one directly across the street. I will report back as I discover more.