I have really enjoyed the effervescent cleaner. At first I was using it with a silicone brush and just a soft cloth and was getting decent results. I talked with Maddie and she suggested I use a scrub daddy and since then it has worked AMAZING!! I recently used it in my shower on hard water stains, my faucet hasn’t been this shiny in years (I have tried all the products to get the hard water off) and it even removed water stains from my tub that have been there since we moved in that nothing would touch. There is a bit of a learning curve but once you get it, this product is as good as any harsh chemical product on the shelf