This is a helpful product, but is by no means a replacement for regularly cleaning your shower. We use this every time we shower and spray all the tile. This does help to prevent soap scum build up, but does not totally prevent it. It does make it a little easier to remove with weekly cleanings. It really does not do much for mold and mildew here in Florida. That can only be dealt with a chlorine type cleaner. This is not a cheap product, but is beneficial and we have been using this for many, many years. I wish it was scent free because when you are in an enclosed glass shower and do not open the door before spraying, it can be quite over powering of a scent. It is also great for use on the glass shower door which seems to get the most and hardest to remove soap scum build up. It does help reduce hard water build up also. This product can be purchased almost at any store you shop at. Performance This works somewhat at helping to reduce soap scum. It at least makes it a little easier to remove. Scent Not over powering, but not the greatest scent to be breathing in either.