OK - if you want to go somewhere sleek in Saigon - Square One will pretty much fit the bill. Rather than just one open kitchen (a la Caprice at the Four Seasons in Hong Kong), there are SEVEN! Each focusing on a particular cooking technique (grilling, baking, steaming, etc.).
The decor is comfortable (armrests of armchairs too high) and the Vietnamese food is actually good and well presented.
What was enjoyable? Pho Beef Soup with rice vermicelli - nice clear stock, flavourful.
What was not enjoyable? Trying too hard perhaps? Everything is just a bit out of place - you could be any where - New York, London, Hong Kong ...