I have restored over one hundred records with Record Restore, and the results have been well worth the time and effort required using the product. Pressings over 60 years old have come back with better sound clarity and a huge reduction of pops and ticks. In some cases the records sound as new.
My most memorable Restore was a terrible sounding record from the 1980s I bought in a bulk box. The sound was barely audible (but there was good music underneath). The first application peeled off dark brown. Taking no risks, I gave that record a second application. The record now sounds fantastic.
So while this product does take a bit of time and effort, you will not be disappointed with the results.