Overall this product worked really well for me. FIRST, I must say that I have very hard water, and despite a whole house filter AND water softener set on maximum, and my regular cleaning, the hard water leaves buildup on my glass shower doors & surfaces. I used Zep as directed (spray and leave for 2-3 mins, then wipe and rinse), but it wasn't quite enough. So I resprayed Zep, let it sit at bit longer, then scrubbed with a sponge in circles for several minutes. I then scrubbed it all again before rinsing clean. As you can see, Zep did remove A lOT of the buildup, but not all. However, I do think with regular use, Zep will continue to remove the past buildup. It just did require a lot of scrubbing for my particular situation , whereas it may work much quicker and easier for those who have less hard water! It definitely worked better than my previous products, so I will continue to use and definitely recommend!

Very impressive product, I sprayed it and left it on so it would its magic for about 20min, came back and just had to remove with water and no scrubbing necessary, I’m sold. The smell is not as strong as other products which I also loved

I use it on my shower door, and the soap scum lifted off way easier than I expected. It also made a big difference on the hard water stains around my faucet. Just spray, let it sit briefly, and rinse or wipe - super simple.

Very good product. No strong smells. Really cuts through soap scum very well. Everything looks noticeably clean. A great choice especially when I want a clean look. A little goes a long way and it rinses clean.