Hi !

I have been working with libGDX recently. It's quite simple to use, at least if you already have solid knowledge in Java and if you are willing to read a lot of documentation. For a start I recommend following the two following tutorials:

https://github.com/libgdx/libgdx/wiki/A-simple-game

https://github.com/libgdx/libgdx/wiki/Extending-the-simple-game

What else would you like to know ?