If OP lives in Harveston, I can understand wanting to move.
Harveston is the result of a City Council ran by developers.
Harveston was a poorly planned community IMO, to densely packed with homes. Close to the freeway and the sewage treatment plant (when the wind blows just right).
IMO Harveston is more Murrieta than Temecula.
Moving to Temecula (city)? Stay south of Rancho California.