No shopping mall or commercial is Ok for me. Now delivery or Shoppe v convenient already. I work in Sunway area and Sunway Pyramid is nearby for groceries shopping. Sunway Belfield is too far for me as I travel daily. I am actually also considering OKR as the price like Platinum Arena is lower but too many condos around. Feel packed. But the price psf in OKR is more affordable.
But yeah, factories around Serene are one of my main concern. Worry pollution in future. But at least no HTC or pylon. Plan to own stay for many many years unless the condo got major problem in management or something else in future. Considering either OKR or Serene for long time own stay. Not really want to invest property and move again at the moment. I prefer to have one nice home than a few investing properties. Ha, maybe also due to I do not have extra money for that.
So, everyone here think that Serene is a place that can really own stay up to at least 10 years?
Yea I agree with you. Even I buy everything online already, there's no need for that many commercial areas nearby. Besides, Giants and paradigm and Pyramid isn't THAT far away.

Really depends on your personal needs, I was surveying OKR as well for personal homestay. Just like you I felt that area is packed with high rises.
I think a 10 Year target for Serene is a good bet.