main difference is Two way Interaction containing various steps so i think gate instructors better
Step-1 Video lecture (English/Hindi) with Two way Interaction
Step-2 Complete GATE Study material and notes (Topic Wise) with Two way Interaction
Step-3 P... ractice Questions (Topic Wise) with Two way Interaction
Step-4 GATE Questions (Topic Wise) with Two way Interaction
Step-5 Online Test Series with Two way Interaction About 150 Subjective Test & About 20 Full Length Test are available.
Step-6 Topic Wise Open discussion+ More