Unsuccessful, but...
I lost the contents of a USB stick that contained numerous work files that were not yet delivered. I bought Recoverit because it could locate the files but the end result was something similar to 'file corrupted, cannot be recovered'. I contacted them and they offered support. But at the end, since we could not get the files, they offered to exchange the product I bought to another one from their catalogue. So not the service I needed, but still a good experience.