Hm from cheras... you could use the seremban highway until federal highway, then up the flyover after you pass the yellow wilayah persekutuan gate at jalan gasing there. Wait for the traffic light and turn right, going across the flyover bridge. Go all the way straight pass 2 roundabouts at 12 o clock and you'll be at SS2 area. DJ is across LDP from SS2. You know where KDU is? Jelutong is quite nearby there...
Give me a call la if you need directions. Ill PM you my number.
Whoever coming faster report la hehe.