The battery is a little small, but its an acceptable car for a town runaround or to work and back.
The Mini has a 32.6 kWh battery, not sure how much is usable.
At a minimum I'd recommend 40kWh of battery for a car, this is close, but not quite there.
Car Magazine says its an adequate car, but there are better options out there (in UK). Given the dearth of electric cars available in South Africa (very old model leaf, fugly i3, and $$$ Pace), this is probably your best bet for electric here.
Our full review of the Mini Electric, with range and charging details, driving impressions and practicality details
www.carmagazine.co.uk