don't get me wrong: the M930 is a stunning mic, very similar to a TLM103, but a notch better IMHO. There are a few minor things which make me question my purchase:
I don't record a huge variety of sources, mostly my tenor sax, flutes, and a few female singers (since I am producing "dance music" and 95% of all sounds come from my synths). For my style of sax recording, I generally like my Neumann KSM184 better. The M930 has a high-frequency boost which makes the sax sound a bit tinny in the upper registers, and it is lacking enough depth at the lower registers. The KSM184 simply shines there, due to its ruler-flat frequency response.
On my voice, the M930 is a killer mic, and significantly better than the AT4047 which I've used before. For the female vocals where I've tried it, it was very "flattering", too, and very similar to the TLM103, even though the high-frequ boost is a bit too pronounced for my taste. For voice-overs, nothing can beat the M930, though! I wonder if someone has ever tried it for Rap/HipHop, where it must be awesome! (I saw a HipHop video the other day where they showed the M930; I dunno, though, if they actually used it in the recording or only for the video)
Bottom line so far: as an instrument mic, I prefer the SDC Neumann 184, while it works well on many vocals.
Here's probably the main reason why I would like to get something else, but don't laugh: the Gefell M930 is actually VERY small, which can be an advantage coz mic positioning when recording instruments is so much easier. As a main vocal mic, however, the size is an ironic disadvantage: the singer I had a few days ago made some strange comments about the "size" of the mic and questioned my choice. Sadly, she thought I don't take her serious when she spotted the small mic on the stand. I know that this is ironic, coz the size of the mic has nothing to do with the sound quality, but it feels odd when you have to defend your choice as a producer. Maybe I should take her remarks seriously and give my vocalists the impression that they get my full attention and the best possible gear by placing a big junky mic in front of them, preferrably with a flashy logo they recognize. After all, singers are artists and not particularly logic at times.
I hope I didn't sound too silly. Since I just got the mic one week ago, I tought I'll try something else while it still is brand spanking new.