I tried out this software, fully utilizing the trial period. I followed the documentation, reading it several times. After struggling with the application for the entire time I used it, I gave up.

There doesn't seem to be any way to preview your settings. If you use the default settings, you might get good results. I did on one album. I didn't on others. I tried to make settings that corresponded with the documentation suggestions. Then I tried to preview my file to see if I hit the mark. The bar across the top of the waveform screen is worse than useless for naviation. It implies you can navigate to a particular spot in the file, but you can't. It's kinda random where you might land. This "feature" alone wasted many many hours of my time.

I ended up purchasing iZotope RX. It's light years ahead of ClickRepair, and a truly professional grade piece of software. It's also far more expensive. Amazon has a much better price than the developer's web site, but it's still a LOT more money than ClickRepair. RX was worth it to me as nothing is more valuable to me than my time.

All that said, I will recommend this software, but with reservations. It's probably worth the money, but I would not call it a bargain. I believe it all depends on what sort of quality you expect and how much time you have to figure it out.