I've been reading this thread from the beginning but I kept refraining myself from commenting as this discussion, like every other CJ thread unfortunately, always ends up being trolled and spoiled. At times, I wonder if there can ever be mature and honest discussions on this forum. Well, I'll give it a go and share my perspective on CJ as a buyer for own stay.
First of all, for those who don't know me, I was not born nor raise in this country, rather I have lived and worked in many countries, mostly developed nations or oversea territories of said nations, so my expectations and preferences can be quite different from the local population. Also, I have been living in Malaysia, KV exclusively, for 10+ years now, so I'm quite familiar with the local standard of living.
The primary reason I chose to buy and stay in CJ is its uniqueness compared to the rest of the KV. For one, it's a planned township, and compared to the urban sprawling found elsewhere, that means a well designed network of roads that is both ample and diverse (i.e. not forced to drive back into a single road to get anywhere - yes I'm looking at you Puchong), gazetted green spaces and parks (nicely spread out and totaling 40% of the land area), and overall a balanced environment comprised of housing, offices and shops, without any factory (and neither car shop allowed to open next to a restaurant for instance - hard to enjoy a meal when the restaurant is sandwiched between two filthy shops -Hello Cheras, Puchong, PJ, ... pretty much any shop lots anywhere else). That alone sold me CJ. Finally a place that is well maintained and looked after.
I can understand the interest in older and more happening suburbs, with their many choices of restaurants, pubs and other hang out places -and I do enjoy doing there from time to time-, but gosh, how filthy and chaotic these can be! Horrible traffic to get in and out (with doubled or tripled-park vehicles to add insult to injury), shop lots poorly or not maintained at all, litter everywhere. Seems like nobody cares, or stopped caring a long time ago.
Most of the bad things people say about CJ, I actually consider them positive points. Ghost town? Great! It's quiet, no traffic jam, relaxing. Too many high rise? I actually prefer the convenience of condominiums over landed properties (which in Malaysia are designed in a way that one is forced to drive to do mundane tasks such as buying milk or having dinner out). No night life? I sleep early

The MNC, IT-centric businesses are icing on the cake for me as I work in this sector. By the way, I work in near KLCC, yet I chose to live in CJ. Just for the ones who think only people working in CJ would consider living in CJ. Just plain not true. I wouldn't swap my CJ condo for one located closer to my office. Distance is not the issue, commuting time is, and CJ is doing much better than one may think: MEX shrinks travel time to KL down to a similar level as living around Bukit Jalil (I know what I'm talking about, I used to drive BJ-KL every day, BJ can be even worse, as it is heavy traffic until you get onto the highway), and the ERL gets me to KL Sentral in under 20min.
I can't think of anything CJ is missing. Whatever may be is already under construction. It's been mentioned several times over already.