I liked that it had an easy to use interface, which made trading very simple for me as well as my friends who were new at this game of cryptocurrency investing. The charts are also great! They have some pretty cool graphs in there too. It's not perfect by any means but they did try their best with what was available to them back then. Try out other exchanges if you can find one better than btcindex. You will be able to make money more easily since your ROI (Return On Investment) ratio will go up significantly.