Hi,
I won't be able to answer your specific questions but having bought a flat myself in Taymount Grange recently I can say it is a great place to live.
I only moved in early December but have found it to be amazingly peaceful, friendly and clean place to rest your bones.
The live in caretaker is a great guy and from my limited experience as a tenant, there is very little for you to worry about on a day to day basis (other than will your guests be able to make it up the hill).

Heating and hot water is part of your service charge too btw.

Cheers.. Rob.