I'm not gonna recommend this for personal safety but for pokemon go its great.
Went to JHB city center today had to go fetch something for work, so had a driver. We went in the normal way but Nelson Mandela bridge was blocked (not sure if it was for a strike) and at the high court there was a strike so we had to really take back roads.
I found 3 magmar, 8 eevees (which I hadn't seen until today), 4 geodudes, 2 onix (hadn't seen untill today), a psy duck, koffing, 4 rattatas (which I hadn't seen untill today) and about 1000 zubats all in an hour and a half of being lost there.
There are pokestops on just about every city block so stocked up with pokeballs.
So if anyone asks you to go with to JHB central jump in but I wouldn't try drive balling there its a guaranteed accident.