ABAP Design templates help programmers to quickly create/modify standard as well as custom code/comment snippets
SQL console with Eclipse ADT is one of the most powerful tools which is not present in classical GUI ABAP workbench. With SQL console, now a Developer can directly query on SAP Business Database schema and can check the result/output on the fly.
Shortcuts are the quickest way to get things done easily with Eclipse.
ABAP Doc can be used to provide developer documentation for ABAP source code development objects (like classes, interfaces, function modules, programs) within the ABAP source code by using ABAP comments.
ABAP Profiling gives a holistic view of execution with the overview. It also provides Hit List, Call-sequence, Call-timelines, and DB accesses information. Analysing information provided by Profiling helps to understand Performance Bottlenecks. ABAP Profiling in Eclipse is equivalent to old SE30 or SAT transactions in SAP GUI. SAP dedicated a separate perspective for ABAP Profiling.
Using help with Eclipse is, as expected, tightly integrated with ABAP backend server. ABAP documentation can be called from within Eclipse. For showing help content, Eclipse is equipped with a dedicated Help view.
People often ask questions that what are add-on benefits of Eclipse ADT over Classical GUI workbench. Well, there are many including offline code preservation and one the most important: Native Eclipse Features! They are easy to use yet powerful and make work easy for the day.