Ever since I came across this exchange on CryptoWisser where it was regarded as an 'almost dead exchange' I took my time to study the exchange before actually making any move to trade there. Even on CoinMarketCap, the exchange was said to be undergoing some sort of maintenance. So this review is going to be based on personal research because I am yet to use the exchange.
Xena Exchange is a derivatives exchange which has its base in United Kingdom, it was launched in 2017. Built with an excellent and a well designed user interface, Xena Exchange aims to be provide a convenient and an easy way to securely trade any cryptocurrencies. On this exchange, the fee structure is actually moderate and affordable, makers are not charged at all while takers are charged a fee of 0.05% thus improving the liquidity of the exchange. After the maintenance is over, I hope to write a review update on Xena Exchange.