I use them, mostly because they're the cheapest for me.
Positives:
-0.4% per transaction, minimum of R120, same as the competition!
-R800/year subscription fee.
-If you trade 5 times per year there is no subscription fee, so in actual fact the subscription fee should be R600.05, just buy 5 1c penny shares if you must
-I do trade more than 5 times a year on regular amounts, so for me there is in effect no subscription fee.
Negatives
-As far as I can see, no stop loss.
-The website wouldn't let me in a couple of times (had to call them to reset my password).