MNL to San Francisco with 5-hour transit stop-over at Singapore Changi. T3 is huge and impressive. I saw plenty of high end stores and good places to eat inside T3. I went to the Ambassador Transit Lounge on the second floor after landing at Changi. It is quite difficult to locate this lounge due to the vastness of T3 - .a good place to stay if you have more than 3-4 hours transit stop at Changi. The lounge shower room was clean; buffet food more than adequate English-language newspapers were available and lounge staff attentive and friendly. My only complaint is that their internet was very slow. There was another security check at the gate with x-ray check for carry-ons. Security check orderly and done in a friendly and professional manner. The waiting area at the gate has more than enough seats.