We had an excellent experience with this product. The sealant application did not require a professional as it was very easy to do ourselves. Our pool and patio pavers now look better than ever. I was able to walk on the newly applied surface within an hour. Best of all , clean up was a snap, everything flushed clean with warm soapy water and actual clean-up was minimal. Can’t say how long the results will last a it is only down about a week but given the overall ease i will certainly utilize this product again!