Etherdelta is decentralized exchanger that difficult to you for some traders.specially newbies.And the interface is not user friendly.it need GAS for everything.and the import account from private key also a risk.but i saw some traders really like etherdelta.But i want to know what is the specialty in it.
I like it because it is easy to sell or buy erc20 tokens which are not listed at any other exchange.
Other than this i don't think there is anything to like or not to like, it serve its purpose.