First and most important: the Superlux D112C has the hot, a bit distorted, lo-fi, sound of a green bullet microphone. The sound is very nice.
Yes, together with the right amp, the Superlux gives the classic beautiful Chicago harmonica tone. It also gives very nice tones suitable for blues and rock n roll.
Holding the mic and cupping the harmonica is easy with this microphone. Easier than with vocal mic like the shure sm58 type of mics, or with wand-type mics.
It is built like a tank. Great craftmanship and construction. Not so nice is that, as the original GB, the cable is hardwired into the mic.
And it has a volume knob, which is a very nice feature.