It's the exact same mic as the MXL 2001 mic, which I have. It's a nice mic for the price. Since the Nady is about $50 or $60 cheaper, it sounds like a super deal...
I say go for it. The MXL is good for drum overheads and other things, so the NADY would be great for getting a pair.
Yes it's the same mic as the MXL2001, JM47, ADK-51, and a few other I can't remember right now. But I can "recall' if you're really interested.
If you are absolutely gonna buy one, I strongly recommend you listen to the one exact one you're gonna buy. There are REALLY bad inconsistency problems with all those mics; mainly having to do with the capsule.
For example: Two of the same make and model, even with consecutive serial numbers, can sound drasticly different.
There are plenty of discussions about all this in the archives.