When comparing Luminus vs Udash, the Slant community recommends Udash for most people. In the question“What are the best JVM web frameworks?” Udash is ranked 8th while Luminus is ranked 9th. The most important reason people chose Udash is:
Similar to Vaadin & Meteor but in Scala.
Ranked in these QuestionsQuestion Ranking
Pros
Pro ClojureScript for client-side scripting
Luminus allows using ClojureScript for client-side development. This allows sharing things like validation logic between the server and the client.
Pro Luminus is flexible
Luminus is built on a stack of composable libraries that can be easily swapped to make the application fit the needs of the user. The applications are generated using Leiningen templates and can be initialized with a specific set of features, such as database connections, needed for a specific application.
Pro Good documentation
Luminus provides step-by-step documentation on how to accomplish common tasks.
Pro Simple to setup and use
Luminus is small and flexible. It's geared towards interactive development using the REPL. You can see your changes as you're working without having to restart the application.
Pro High level - focus on what you want to do rather than the plumbing
Similar to Vaadin & Meteor but in Scala.
Pro clean modern design
This framework is much more modern than a lot of its competition (e.g. Spring MVC).
Pro Components similar to desktop GUI framework for high level & fast construction of complex GUIs
Pro do it all in Scala in a type safe way
Cons
Con Very new and hence doesn't have a big community yet
Con Limited documentation, no books or 3rd party tutorials/samples
You'll have to be willing to be a pioneer.