Perth is fantastic. Doesn't matter where you live in the metro area you are only 15-20mins away from either the beach or the Swan River.
I can't wait to go back in summer to Cottesloe Beach. I can see me spending a lot of time there.
HLC, Subiaco is an expensive area to rent or buy in, your better off checking out Vic Park.
Best of luck with your move. It is slower than Melbourne or Sydney, but a great place to live all the same