Do you know that going to Paser Seni and Petaling Street are almost the same? Petaling Street has so many people on the weekend and I read some where that at night it will be even worst. I am not going there at night, I think best is going on day time so you get to see more.
At night it will be dark and you got to becareful with your wallet and purse. I think taking KTM will be slow so I will choose Putra LRT. How about you?