Dan P.
Yelp
The key point to note here is that you are situated under one of the world's most iconic bridges, right on Sydney Harbour. Just breathe that in for a tick...
Ok, then you'll notice the noise. It is rather noisy here. Screaming kids chasing pigeons around the grass; the regular ker-chunk ker-chunk of trains rolling by overhead; ferry foghorns saying "get the f*&^ outta my way!".
If you are looking for a place to have a quick nap, or zone out it's probably not ideal for that, but it is relaxing and breathing in the nice cool breeze is somewhat calming.
Clearly, as others have noted, there are better places to take photos and more interesting areas to chill. We take it for granted, but it's really not a bad spot of the world.