Do your research with bitfinex.
I have been using bitfinex for the past 6 months with no issues.
Pros-
Very user friendly interface
The platform uses trading view for its charts.
Very easy to use orders.
High voulme.
Good ISO app
Cons-
I have been locked out of my account now for 3 days with no response from them.
They use tether which I personally are not a fan.
People are experiencing long waits on deposits and withdrawals.
They are currently under heavy DDos attacks which is freezing accounts.
I urge you to do your homework.
Have a look at GDAX or Bittrex not saying their any better however GDAX is the same team members as coinbase and I believe they offer no transfer fees between each other.
also check out
