Vert.x Questions

Vert.x Questions

Hello Vert.x community,
 
I am currently writting my bachelor thesis "Comparison of Concurrency Frameworks for the JVM"
at the university of ulm in Germany. Since one qualitative property of an framework is also its
community and support I decided to check that by myself by asking this questions. This Gist repo
is thought to gather your ideas and oppinions about Vert.x relating to the questions below in oder
to improve my comparison. Feel free to answer as controversial as you want :). Just add the points 
you miss. Thank you very much.
 
1.  Why do you prefer Vert.x over other frameworks such as Akka, Gpars, etc.?
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2.  In which uses cases or type of use cases did you use Vert.x?
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3.  In which use cases is Vert.x especially good ? (e.g. did you use it to solve non-web 
    concurrency issue?) 
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4.  In which use cases is Vert.x not the best choice relating to performance or even feasibility?
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5.  What features do you miss about Vert.x? (e.g. special development tools, further concepts,
    language support etc.)
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6.  The next question can only be answered by the developers of Vert.x. What does the Future of 
    Vert.x will look like?(actual plans, ideals.... )
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