I had been using the Bon floor cleaner on my 8 yard old engineered wood floors for the past 3 years with very good results but had some areas that were starting to look a bit cloudy and dull plus have accumulated the usual minor scratches, dings, boo boo's associated with daily living. Read about the Bona High Gloss Polish and decided to give it a try. Wow! Awesome results that 2 months later, still looks great! And it did indeed "fill" a lot of the scratches and minor damage so that they are hardly noticeable. Don't know why some folks have had negative results but I sure am pleased with the product.