Pros: The Culligan HSH-C135 was really easy to install. I didn't even need to call the plumber or a handyman to replace my old showerhead. From the picture, there aren't many components to snap the filter and shower head. My old shower head also uses a flexible hose so that it was just a matter of unscrewing off the old one and screwing the new one in. It was also nice that a teflon was provided that I don't have to go out buy one. The water that comes out has nice clean feel to it. When I get off the shower, it doesn't feel like there are still some suds left.Cons: Because the water has to go through the filter, much of the pressure gets reduced. The same amount of water comes out but the direction is more downward than really spraying out. I tried fiddling with the settings. Sadly, I couldn't improve the water flow.