CBX is an exchange that has a very good API to allow traders interact with its exchange trading interface to get an impressive and appealing trading experience. The exchange has a 24/7 support which I can always reach out to at any time although I haven't done that yet because all my transactions so far went smooth without an hitch even when I tried making deposits on the exchange from my wallet account it reflected on my exchange account instantaneously. The exchange has an affordable transaction fee but the takers are paying twice the makers fee of 0.1% which is also reasonable but the cost of withdrawal on the exchange isn't very favourable for certain coin like BTC which is a standard fee of 0.001BTC. The level of security on the exchange is perfect it use a cold wallet to keep traders virtual assets very secured from hackers.