I totally agree! There are many good features, but that based on very weak and slow editor with a heavy interface.
In Web IDE I really like the smart completion and direct jump to the definition of class, id or tag in the CSS file (ctrl+b). But it lacks the flexibility and speed in the normal daily work of editing text and code.
And there is no minimap, multiselect and Sublimator's Zen Coding and Web Development amazing packages