I've long had my upsets with Bittrex and have since been trading primarily on Binance.

I still use my Bittrex account from time to time as they have a much wider coin selection but Binance is young and adding new coins daily.

Plus they are working towards decentralization.

You can give my write up on Binance a read: https://steemit.com/cryptocurrency/@bcsaffy/why-binance-has-become-my-favorite-crypto-exchange

If you haven't started trading or opened up an account on Binance yet give the sight a browse by clicking here: Binance Exchange