I am always annoyed by etherdelta's user interface. It is hard to use usually in mobile device and hard to scroll down especially when buying or selling. Unlike other trading sites have good UI. I can't stop using etherdelta because most of my tokens are only tradable in their slow site.
Agreed, creepy laggi eternal loadings. Very bad UI\UX.. I dont know, they really need some work on it.
Forkdelta is little bit less ugly frontend which works much faster without those annoying lags. Still UI is pretty crappy though. But it is still the best place to trade erc20 tokens.