Oh. I stayed at the Hotel Nikko Saigon.
The hotel may be far from the central of Ho Chi Minh City but it does have its good points. Being relatively new, the facilities inside the hotel are top notch. The spa and the buffet breakfast are perhaps the best in Ho Chi Minh City.
The hotel also provides shuttle bus services to and fro the main attractions too. Location, I feel, in this case is not too much of a problem.