Feature:
I do not know if you should use phantompower on this mic, there is a 1.5 volt battery in the mic, - but whatever, this is a very nice sounding vocal mic

Quality:
The mic I tested looked rather old but worked perfectly which points out that this is a high quality microphone

Value:
I can imagine there are more expensive mics out there than the ATM31 which sound less good. This mic in my opinion is of great value.

Desirability:
I will use this mic more often now, Pity its a discontinued model.

Sound:
It was not so long ago when,during a soundcheckfor a known female singer I had some spare time and found this mic in the mic case. So I thought why not try it. I did not expect much but was really surprised about the tranparency and clarity of this mic. You get a real sweet full sound with this mic. When the singer then arrived I asked her to check this mic for a while. Although she usually uses a Shure Beta 87A she insisted to use this mic during the gig. It was not a bad decision, her voice came over, clear, full and transparent. This is a seriously phantastic sounding microphone.

Ease of Use:
As any microphone

Support:
I do not know

Overall:
Overall, if you find one get it, you won´t regret it

Excellent mic for large choral groups Live and recording.
Excellent mic for some folk music vocals live(those that don't sound good with SM58s).
I own 6!

Great for large vocal groups such as choirs and choruses.