We loved our stay in Roseville. The apartment is spacious but still cosy, and much more welcoming than the pictures suggest. There are beautiful trees outside and it is quiet, comfortable and well-equipped. Claire's communication was excellent. The balcony was a nice place to sit with a cup of tea and watch the birds in the trees.
If using public transport, the location is great, with a train station about 5 minutes' walk away. There is a short but steep hill on the walk to it. If you have teenagers who enjoy just walking out to amenities there isn't much nearby, but there is lots to do in Chatswood which is only one train stop away.
It took us about 25 minutes to get into central Sydney (Circular Quay) with one change. Bondi or Manly are at least an hour away using public transport, but the transport is frequent, cheap and easy to use.
I would definitely stay here again - we slept well and enjoyed our quiet and peaceful location.