I found VUPlayer by necessity--certain FLAC files of excellent quality were not being played properly by VLC,
I quite like the product and am inclined to stick with it for audio playback.
There is one issue, however. The keyboard shortcuts are, uh, not quite standard. As a veteran software professional specializing in UI issues, this is a pet peeve.
I was hoping to get access to the necessary information/code that would allow me to add a dialog box wherein keyboard shortcuts could be assigned/re-assigned--user customization, in short. www.textpad.com's flagship product is an excellent solution for a much more complex situation--see Configure | Preferences | Keyboard for an elaborate version of what I would be willing to code for the userbase out there.