JHipser has a wonderful (and very diverse) technology stack, allowing you to place your project on a firm-ground base from the very begging. It is especially useful in the initial phases of the project because it allows you to configure your project quickly and enhances best practices in coding and project structure standards (which can be especially useful for someone developing his first application). It also has a set of very useful commands that speed up implementation process.

Very fast and easy to use, quick crud operations with ui to view relationships between entities.

The best thing is that it supports things like elastic search too.