I have been to a ton of Vietnamese restaurants but I still don't feel I have a strong barometer for the different flavours. That said Thaison sits high on my list for Vietnamese spots serving buns and rice dishes sharing the echelon with Green Lemongrass, Song Huong, Bao Chau, and Pho Tai Hoa.
The food has always been tasty and very well priced. The location is ideal for me, service has been prompt and that running egg has always put a smile on my face despite my egg sensitivity. For those who want to try something different, I have heard many good things about the egg omelet.
My only gripe is the spring roll which with it's egg wrapper feels more similar to it's Chinese cousin than the ones I normally see at Vietnamese spots.