"play_compile" is just a compile script. It uses SBT so Maven should work just fine here. Even direct javac will work. This way, you can use VIM"s quickfix buffer (:cnext, :clist: cprev, etc).
For jumping around the classes, I use ctrl-p. Its beautiful.
Use it. Faster than eclipse in jumping around files.
For jumping around methods, I use tagsearch with exuberant c-tags.
Jump into method declarations by using ctrl-]. Go back using
Ctrl-o. Doesnt work as good as eclipse, but it works good enough.
I use supertab for code completion. Javacomplete is pretty slow, so I stick with omni-complete. Again, not as accurate as eclipse, but its fast and works good enough for me.