I use bestreal estate at wentworthville for my properties in Girraween and doonside. They are alright too.
Our PM Laing & Simmons Mount Druitt manage all the way to Merrylands & Parramatta surrounds. Great service at a reasonable fee. PM me for Basel's (Principal) number
I get really good rates with a PM that actually is in Merrylands which means he can check the property more often and constantly gets approached by people for rentals in the area. If you are interested let me know and I can give you his details.