I got mine two days ago and haven't stopped recording with it since. It's clear, no buzz/interference at all, I use it for a range of recordings - Guitar, Vocals, Drums(snare and Hi-Hat) and I tried my piano yesterday, and it performs brilliantly. Although I should say the piano recording was a slight dissapointment, This is a uni-directional but it is only really meant for picking up audio closest to it so it was hard to record the piano and get a good balance of treble, bass and clarity. I'm not a pro recorder (I'm using an M-Audio Black Box going into my laptop with Cubase) so I'm sure a more experienced recorder/musician can produce better results.
Overall this microphone has been excellent so far for me, definitely a good investment in my opinion.