I have been using this opticians for 4 years now, and still do an annual commute there even though I no longer live in Manly.
I have been getting my eyes tested for years and this was one of the first opticians I went to where it didn't feel like you were entering an antiseptic doctor's waiting room. The staff are all very friendly, and you don't get any sense that they are trying to push you in to buying the premium glasses or lenses. It was also the first place I went that had all the latest gear to photograph your retina, etc. to really give your eyes a thorough health check.