It's Portuguese flame grilled chicken, peri-peri from medium to very hot, or lemon and herb. Best chicken and burgers you can get, but not cheap. The original branch opened in Rosettenville in Johannesburg many years ago, eventually they decided to open branches around the JHB area and then the country. Very popular in our country, not sure if it still taste the same. Worth a try, it's up to you if you like it or not, must say it's much better and healthier than KFC.
I've been there many times when we go to South Africa.