Even if it's safe, the platform is excruciatingly slow right now. But that's mainly because of the overloaded Ethereum network too I think.
The network works very slow because you don't set more gas,watch out on
https://ethgasstation.info/ the price of gas right now, also i think EtherDelta is safe right now, i used it and I didn't had any problem.
No, I'm talking about both the EtherDelta website itself as well as the transactions. Both are extremely slow regardless of the amount of gas. When the recommended gas was 21 I set 45 and it still took 3 hours to come through. That's because there was a backlog.