I just move to Puchong few months back, it is jam there but car are still moving. What I like there is the shops , schools, basic amenities is all there (minus traffic). There will be always pro and cons. Even you live in new township, first 5 years it will be peaceful because less traffic . But once the township mature, more and more development coming in and it mean more people will move in to stay and house price will definitely increase....