I'm currently looking for another high volume altcoin exchange. I am now currently with cryptsy, but as I continue to read on these forums they are bad with customer service. I did have an issue b4 with them, it did get straightened out but it took 4 days. I really don't want to have a horror story to put here, lol. I trade daily about 3 btc. And so far I'm doing ok. Are there any others exchanges out there just as big as cryptsy? Ltc, doge coins are a must. Thanks guys.