i live in prima saujana kajang, i think this surrounding area is ok, 26km from KLCC using kajang cheras highway, this place is not congested, nearby giant, tesco, mcd etc.
MRT station is like 3km away.
ktm station is 5km away.

there are lots of new properties surrounding this area.

i live here more than 6 years and i've never been semenyih, so i cannot compare.