I went to Xinmatai in May 2008 and felt very tired. /kloc-I went to three countries in 0/2 days, which was basically a cursory tour. My personal suggestion is only a deep trip to Thailand, because Singapore only looks at the city, and Malaysia only goes to Genting Casino and spends most of its time in Thailand.
Last time I was with Haitian International Travel Service, to be honest, it was very general (there are many self-funded projects in Thailand, so it is best to consult in detail before leaving)
Have a nice trip.