US investors permitted
Rfinex is a cryptocurrency exchange based in the United Kingdom. United Kingdom is the country which without a doubt has the most cryptocurrency exchanges in the world. At least that we know of. A non-exhaustive list of exchanges from the UK (in addition to this one) includes Exmo, CEX.io, CoinEgg, Livecoin, DSX, LocalTrade, Bittylicious (funny name by the way), CoinMate, Indacoin, MixCoins, Paybis, Vaultoro, Instant Bitex and eToro.
It has a strange selection of trading pairs with many cryptocurrencies that are less known. Trading fees are reasonable, whereas the withdrawal fees are somewhat on the high end.
Detailed review will follow.