This is a little gem. It sounds surprisingly good and is easy to handle.
Stereo signal from a special cable that splits into two seperate XLR's (remember phantom power for both sides)
I use it to pick ambience, pointing it towards the audience during live performances so I can blend audience (applause hopefully), both to get a little ambience in my in-ears, but also to catch the audience noise on recordings. I find it picks up sounds truthfully, but bear in mind that for my use the requirements to sound quality is not high - why I really cannot comment on the sound quality from a studio perspective.