I went to the Hô'Vàng Vietnamese/Thai Restaurant in Rosa-Luxemburg Straße at the weekend with a party of 20 students and had a brilliant evening. The food was of good quality with generous portions and the staff could not have been more helpful and accommodating. Our students (and the staff!) loved it and I would heartily recommend it for either a group or individual visit. Best to book if you are a group.
Rosa-Luxemburg-Straße 17,
10178 Berlin
Tel.: 030 30875459
Web: Ho Vang
U-Bahn: Rosa-Luxemburg-Platz (U2), S-Bahn: Alexanderplatz