I use a flanger on bass and I bought it mainly because of the influence of bass players Tool and Isis who use the flanger more than often and it sounds great. I have to admit that the MXR sounds great too and I use it mainly for strumming passages and for deep notes crossing the guitar. The effect offers a wide range of tone timbres from slight distortion to a proper phase. I chose the flanger from MXR because they haven't let me down with any effect yet and I don't even own effects from any other brand.

Pros: Excellent performance, great sound options, high-quality processing

Cons: Necessity of an 18V adapter