I trade with XRP on Bitstorage exchange, the lastest exchange where XRP is listed. for now. feedbackable support, interface is common for all average exchange, smoothless withdrawals.. don't know what else
I didn't trade XRP I traded on Binance Coinbase and Yobit To me investing in these three places seems to be the simplest. I made the foremost profit by investing in Binance it's currently on.