https://etherdelta.com/#0x16b0a1a87ae8af5c792fabc429c4fe248834842b-ETH
You can trade in here.
Better than idex, i don't think idex is a good place for trading at least for now.
i don't think so, idex is faster than ED in updating order book.
but, IDEX is not user friendly cause we should put $150 for market maker and $50 for taker.
about private key, all decent exchange that required to access your wallet need it, but that's not mean devs will steal your money when you not get phissing
Etherdelta and IDEx both are an ok exchange (at some level) but the problem is they don't have much of a volume.
IDEX is still OK. But EtherDelta is really pathetic. You will scratch your head in trying to get an order placed
For me both this exchanges are very strange. One look on them is enough to never go back there. I'm not surprised that any token can be listed there..
We DEFINITELY need a NORMAL exchange!
IDEX is decentralized exchange, you can use your nano/trazor wallet to sell buy assets. Is very easy to use. Can't tell anything about ED as I never used it.