Worth the puchase!

After finding my USB drive had become corrupted, I remembered seeing a recent review of Clever Files app Disk Drill. I went to the website and downloaded a trial of it to determine if it would recover the files and found that it did exactly what was advertised. I then got it off the Mac App Store (after reading the description and reviews) to find that it would not recognize my USB drive right off the bat. I contacted Clever Files about this issue and received a VERY quick reply as to where to go to install a patch that would allow this to work. After doing this, Disk Drill Media Recovery FLAWLESSLY recovered my files.
I do not work for Clever Files. But want to remind others in this review that limitations on what apps can do is due to the Mac App Store Sandboxing. This is not an issue with developers but with Apple. If you want to make sure apps have maximum security and minimal impact on your system, the Mac App Store is the way to go. But if you want full functionality of apps, the majority will have to be downloaded from developers websites.
I will give this app a full five stars for fulfilling its promise (though with a small patch), quick response (thanks Kim!) and a great product. Thanks again!

SIUWriter about Disk Drill Data Recovery