I don't think the problem is Nuclear per se, not in the South African context. I live five kilometres from Koeberg, so clearly I have no problem with nuclear.
The problem is that this deal is probably going to be like the arms deal on steroids, and we know already that Eskom just cannot manage big builds without huge over-runs in time and cost.
So, regardless of the merits of nuclear or not, it is an almost dead cert that Eskom and Government will bugger it up, and it will end up costing far more than it should have.
Also, from a personal perspective, I am not sure that we need this amount of base load (regardless of source) given the demand trajectory as it currently stands, and I am further concerned that the requirements are based on a plan that is way out of date. Things have moved on considerably since the plan this procurement is based on was produced (2011 if I recall correctly).
So, we aren't really in a position now to even discuss the merits of nuclear vs other base load tech, and yet we (or the government rather) seems intent on rushing into it regardless. That by itself just raises a whole bunch of red flags especially given the relationship between number 1, Putin, and the Guptas.