I am a producer. And I heavly use digital sounds in my productions. I never used any Waldorf series, this is first.
There is a USB cable between the Blofeld and the computer for MIDI transmission/receiving. And it is working properly. Overall build quality is also very good. Its audio output is noise free.
And the sounds...
Because of not having Mastering Effects, the audio output level is low but, it is not a problem. You can use it for any production. I tested all the sounds and they may not be useful for everyone. But the parameters are quite enough to create a new patch. The filters are top notch quality. Modulation matrix is also very complex. Max polyphony is not a problem, only 25 notes.
For 323¤, you buy a digital synth that is really enough to create a pro-sound. Don't compete it with Virus because they have not similar engines. But, if you create your own patches, you really surprise for the result.
Highly recommended...