Here are the key features for Greek students:
-Quick lexical access to LSJ (and Thayer’s I presume) when you hover over a word in the NT text (Greek, or even English).
-Ability to do word (and multiple words) search in English translations like ESV and NIV (no NRSV or NET, sadly)
-Ability to do word searches easily in Greek
-Shows Greek interlinear if you want
-Ability to Greek word search the Septuagint
-Helps students identify “related” Greek words.
There are also some public domain commentaries (Luther, Lightfoot, K & D)
You can see an introductory slideshow here.