Pros: Refills available
Cons: Who wants refills when it doesn't work well?
We bought this product for the shower off our bedroom, which tends to build up soap scum and mildew very quickly. It is a very small stand up shower stall. The bottle says that you do not need to clean first, if the shower is dirty expect results by 3 to 4 weeks. We used the entire bottle and did not notice any results at all. Maybe if you cleaned first it would be better, but our shower was not horribly dirty and we didn't feel it was having any effect whatsoever so we didn't try it again. It does have a very strong smell, but it didn't bother us much as it dissapates fairly soon after spraying.