This probably won't help much...
As Libby has pointed out areas can be a hot topic for many people and I have seen many a heated debate on this forum about areas but this is my view point:
I think it is impossible for anyone to comment on an area to somebody else as everyone's expectations are different. For instance I came from a pretty dodgy area in the UK so I think most areas I have seen in Adelaide are OK but somebody who lived a posh area in the UK may have different view. Also it depends whether you have children, need to be close to public transport or want to be in the hills or near the beach etc. The best advice I can give would be to find a location pretty central when you get here and go and explore the different area, certainly don't invest in a project before you have a good look around Adelaide.
Hope you find what you are looking for in Adelaide