Works very well and it really can shape up your old records. Very simple to operate with enough control.

But imo its too expensive. $40 is just too much.

Can't suggest this above for some reason, but also check out iZotope Music & Speech Cleaner.

http://izotope.com/products/audio/msc/

The high-end implementations of their algorithms are simply stunning. I do have issues with the high-end interface--but this "lite" app looks much cleaner.

I use this for old time radio recordings that sounded awful.
Works fast and like a miracle removes all the noise.
Easy to use. Fast learning curve.
Try it ... You'll be amazed.

Thanks ... Ken

An excellent tool for helping to make vinyl recordings sound better.

If you are used to work with standard audio editors and plugins, DeNoise may need some time to get used to it; the interface might need some improvement, too. But once you have figured it all out, the results are amazing. Along with CLickRepair from the same developer it can help to make rare recordings enjoyable again, which you would have likely trashed in their original vinyl state.

It's also important to point out Brian Davies' excellent and almost instant support.