Frontend generation, ease of use and how fast I can get a project running from scratch

Just give data model and other inputs interactive way, Jhipster will give end to end web appliation or microservice in 2 mins.

It asks few questions about the kind of your application and provide a code according to your application's need, you just have to write your logic for your application to work according to you. It also helps to create database schema n provides a code to connect your database with your code. No extra efforts are required.