I agreed TRANSTAR really sucks!!!! 
Guess what? Just happened yesterday... We bought genting package
from transtar but the return coach is not from transtar and it is
just a normal bus, and the worst of all, the air-cond is not really
completely working!!! So angry about that... They provide lousy
service and buses!!! They didn't informed us when we purchase the
package from them and thought it should be TRANSTAR BUS (from the
picture they show)... Sigh.. i questioned the guy from transtar
genting, he just answered me that " WE ARE CHARTERED THIS BUS"!!!
What can we do on that time, we need to back to singapore and
working tomorrow.. Really a bad experience and spoilt our mood.....
Just like we are on a "Thief's boat"!!! Pay so much money and given
us this kind of services!!! WE WONT BUY FROM THEM ANYMORE... HOPE
THIS CAN HELP OTHERS TO BECAREFUL OF IT..........