About the NUS MBA, I have visited this program and it is definitely lacking in a lot of areas. The NUS MBA is basically an MBA that uses "rote learning" to teach the students. This is the basic methid.
the knock on NUS has always been its disproportionate % of second grade Indian students. Faculty/electives are second grade at best as well. Anyone with a better background will go to Insead and perhaps Hong Kong UST.