Etherflyer is a decentralised exchange that support trading of ethereum with other tokens of smaller value. The exchange does not support BTC so if you have BTC to exchange, you will need to check some other exchanges. Etherflyer was established in 2017 and it is based in Samoa and likely is the only exchange from that region.
As a Dex, users who patronize this exchange will enjoy anlotbof anonymity since KYC is not required nor personal information necessary for registration. Also your funds and your private keys are under your own control. Furthermore, there is no need to worry about security as every decentralized exchange has servers in different locations and not a centralized server that can be attacked easily.
The exchange is a crypto only exchange so withdrawal and deposit is only been a crypto.
My only issue with this exchange is that I could not get mush information about the team behind it.