Use GDAX. It's way more stable and charges way less in fees. A bit of advanced planning can save you lots of grief and hand wringing. Even if GDAX crashes, you can usually get through to the API service. That might take a bit of technical expertise, but making yourself a connector to the API has been one of the most invaluable tools for me in crypto.
Let me know if there's any interest and I can put up a tutorial or something.
PS. GDAX is Coinbase's exchange.
they also recently announced that, from the other day when ethereum crashed down to .10 cents, they'll be refunding everyone who took a hit. pretty nice of them.