Kickstart is an extension for Grails in order to start your project with a good looking frontend. It is intended to be used in rapid application scenarios such as a Startup Weekend or a prototyping session with a customer. This plugin provides adapted scaffolding templates for standard CRUD pages using Twitter's CSS Framework Bootstrap and offers some basic pages for a web site.
Why do you think that https://github.com/lukehaas/css-loaders is a good alternative to KickstartWithBootstrap