This MRT is different as it will cut thru major business centres and linking north part (BU, Damaisara) to centre (Bukit Bintang, Central Market) to South (Cheras, Kajang). Both BN and PR committed to bring down car price and there will be more jam in whole KL. People probably like to stay near to MRT line to avoid spending hours in jam. So I think YouCity better choice.