Quite expensive and useless
I bought it to clean my music library and initially everything went fine. But after a long scan of the library, located on external drive, it fixed some songs, but started to ask for additional payment to fix the rest, citing vague copyright reasons. I do not believe that the developers will pass any money to the artists and I do not think that they should, so it feels like extortion - you have already paid, here you are some results, but if you want the rest, pay some more. The description of the software does not mention that it is only a limited version for $20 and you have to pay more.
larry_ about
Tunes Cleaner