never had one but
yoyo,
I looked at the ad and I downloaded the spec and it looks like a pretty nice mic.
I assume you're talking under $50. That's my go ahead and buy it price point anyway.
They recommend it for guitar cabinets. Is that what you plan to use it for? Because it will probably do other things too. Maybe horns, vocals, or snare. More for live vocals than recording vocals.
I like Audio Technica. I have one of their cheaper mics, MB4000C, and it's a pretty good mic. A field condenser.
Thanks,
Hairy Larry