I recommend this hotel only If you are paying less than $150 USD a night and receiving complimentary breakfast. If you are not getting these rates, go stay at the Rex Hotel or another hotel in this class.
I stayed at the New World for $200 and was not as pleased as I should have been. Despite being a very high class hotel in Saigon, the property did not live up to my expectations. Internet access was via ethernet cable when it should have been WiFi and costs $6/hour or $24/day. The pool was closed for maintenance and the staff did not impress me. If I had not corrected the front desk at checkout, I would have paid twice the rate. I asked the staff to hold my luggage because my flight left late in the evening and they would not allow it. I mean there are simple requests that patrons should not have to worry about asking. Service simply was not there, especially from a property that you'd expect it to be from.
Although I was not pleased as I should have been, the hotel does have some qualities I have to comment on. The breakfast was not bad. It was served in at the Dynasty restaurant in the lobby at $20 USD a person. Full amenities are also provided, where on the second floor you can receive massages, facials, and body scrubs. I was not exceptionally pleased with their massages as well. For $6 USD, you can exercise in their gym.
Simply put, although known as a full-service hotel, the only thing the New World Hotel has going for it is the fact that a U.S. president stayed here. As an American taxpayer, I would be mad to learn that he paid more than $150 USD/night. I recommend this hotel only at the rate described above. If you are paying more, stay at another hotel.