DOES INDEED BLAST THE SCUM-- it's a great cleaner, which I would not be without.
I first purchased this on QVC and then followed up with Amazon for further purchases.
This stuff is amazing, it really gets hard water spots and soap scum and grime out of sinks and tubs. What I really like is I can use it instead of bleach to clean grout in the shower. I sometimes have to give it two coats--meaning spray--go away for a while and come back and use the sponge on the grout--and if it does not all come clean--repeat.

This stuff is strong, it has an odor, and I am sensitive to chemical smells, so I dilute mine and also work with the bathroom fan on when cleaning in an enclosed space.

I do have one warning--do not leave it on chrome/metal fixtures---don't go away and leave it on your faucets--I messed up the finish on a kitchen faucet that way--it' is powerful, you need to spray it, stand there and wait 30 seconds then wipe it down and rinse it off.

Otherwise, it's great for cleaning. It's my only cleaner in the house besides baking soda and isopropyl alcohol

This product was put to the task on my dated plastic tub and shower. I was pleased with how well it worked. I didn't notice a particularly strong odor. I had to do some scrubbing but again my shower is dated.

This product really works to remove soap scum. I have tried many products and this one by far is the best. Spray it on let it sit a few min then wash off. I use a brush to be sure it covers all areas that need cleaning and then rinse it off. It is just that easy. Works great on the glass/plastic doors of a shower or tub. They rinse of clear with no soap scum. It is just that great. Try it I doubt you will be disappointed.

Scumblaster really works! It cuts through soap scum and grime. Just spray it, leave it a few minutes, then wipe or rinse off. Tub, sink and tile are clean and shiny with minimal effort.

This product had absolutely impressed me beyond belief. Our glass door of our shower has been caked in thick soap scum buildup that has seemed impossible to remove. I tried all the typical products people recommended. I even hired a professional cleaning service and they were unable to remove it completely. I sprayed this on, let it sit for 5 minutes then went in with a scouring pad AND IT WORKED. I was shocked.

I did find I had to completely coat the surface to lessen the elbow grease needed with the scouring pad. But I give this product a 10/10 rating.