According to this story on Mweb, there is cause for confidence in our economy.

Whilst the report is glowing in most aspects, there remains concern about our high unemployment rate (which has affectd the rating for some time). But the specific watching brief assigned to the looming succession issue for the Presidency is a new twist.
Explaining the watch status of the rating, King identified uncertainty over political succession, which GCR will monitor closely owing to the potential to undermine the rating.

"The outcome of this issue, which could be influenced by left-aligned factions of the ANC, has the potential to undermine the major recent improvements (and projected further improvements) in key economic and risk indicators, in which case the country's risk rating would deteriorate."