Bittrex is one of the larger crypto to crypto exchanges offerign a large number of trading pairs into bitcoin – including all the major cryptos such as darkcoin, nextcoin and litecoin. They also offer NeuCoin and Ethereum. The exchange does have a very high turnover crypto currencies – leading some to accuse it of allowing pump and dump schemes that erode confidence in the crypto currency ecosystem as a whole. Apart from that they do have very good security with two factor authentication and are United States based. Their fee structure is fairly simple at .25%, while still somewhat high. Bittrex doesn’t charge any fee on deposits and withdrawals. In a way, this help to balance out the relatively higher trade fee imposed by the Bittrex exchange. The Bittrex exchange has a stellar reputation and has not suffered from any hacking attempts. Bittrex’s success in maintaining its security integrity in the wake of several high profile security breaches at several major cryptocurrency exchanges around the world can largely be attributed to the security experiences of its founding team. The customer support service at Bittrex like most other cryptocurrency exchanges leaves very much to be desired. At present, support is only available via an email ticket system.