For years I've been looking for a useable EF. They're not something that can used that often but in the right place they're really dramatic. Problem is ...every one I've used (and I've used several) either altered the original signal or made the sound too "quacky." Sometimes they sound great by themseleves but when blended with the music they just didn't work. Then I tried the BassBalls. It isn't versatile. It isn't fancy. It doesn't have many sounds or sensitivity adjustments or levels. And in a way, that's what I like. You get a nice "synthy" funk tone and that's about it. And that's working for me. Anyone else have experience this? I don't hear a lot of love for the BB.