B2 has a different role than most reverb plug-ins. For most reverb applications, it you notice it, it's being applied too heavily. B2 is intended to be in your face and of use where the effect is intended to be very obvious. It's applicable for situations where you really want spacey, weird, otherworldly, etc. ambiance. So, it depends the type of music/sound you produce. For straight-up popular music, it's of little worth. For sound-track/scape work, it could be one of your favorite effects.
As to quality, it's from 2CAudio, so that should say enough right there.