I would like to advise you to expand the range of currencies for exchange. The fact that you have many "top" coins - this is certainly very cool, but I would like that you would add prospective newcomers. For example, the above guys wrote about the coin DeepOnions - as for me it is the most promising coin of the outgoing year 2017 and next year all crypto community will speak about it! I advise you to consider it for addition to your exchange!