My decision to shift to bitfinex seems to be worth it. I have not had a single problem until now. The support seems to be to quite good, they have extensive knowledge base and good presence over social media. All my queries are solved within minutes. So far the best thing I like is the UI. It's so perfect, vivid and clean. There charts offer quite good verity of tools too. Plus the liquidity is pretty damn crazy. I can exchange within seconds. I recommend bitfinex to everyone who wants to have a premium issue less experience.