This is a must visit.
As these towers seem to be nearly always in your sight, you couldn't come to KL and not go up to the viewing platform.
The towers themselves are so modern and dominating they appear almost surreal against the skyline. Amazingly, the exteriors of the towers are made entirely of stainless steel and glass; this is very unusual and very expensive.
Although these are among the tallest buildings in the world, the high-speed elevator only whisks you up to the 42nd floor. The view is still great, but if you were hoping to make it to the top you will be disappointed.
On the bright side, entry is free. You collect your ticket from the ticket counter where it is stamped with the time of your ascent. You go off and shop for about 25 - 30 minutes and then come back and wait for your turn. It is all very efficient.
If you have your credit card, the KLCC centre is at the base and offers some of the most exclusive shopping in the city.