Mr Bojangles,
I like Manly and i would go so far to say that Manly itself is far better compared to the Eastern suburbs.
My grandparents used to live in Manly, my auntie lived there and i still have cousins and some distant rellies up in the lower northern areas. Manly itself is the bee knees. A great place to live, and thanks to the ferries, an easy and enjoyable commute to the city.
Manly West though could be good. Dependng on where you are. If it were me, i'd get as close to Manly as i could and i would aim for easy bus, or even easy bike trip to the ferry terminal. Parking near the terminal is very difficult, if not near impossible, so if you can get on a direct bus route to the terminal, then you may be on a good thing.
Check the age of the buildings though. Check the wood and window seals.
Thanks
g