I use Indodax, which is a trading platform in my country, there is a platform to trade and directly connect to our account, the interface there is very simple and Indodax also has ISO certification from the country. 
Same, I also use indodax for trading platforms, because indodax is an official exchange in my country, only I also use several other platforms as my trade aides, such as Kucoin, Bibox and Binance.