I've tried a wide variety of products to combat soap scum, including both bleach and non-bleach based formulas. In general, using bleach-based formulas is very unpleasant, due to the strong fumes. So a product like Rejuvenate's soap scum remover will always be preferable to me...if it works.
And, for the most part, this soap scum remover works very well. The only problem, and I think it's something Rejuvenate should address, is that it simply does not work as a "no-scrub" product, which is what the bottle indicates. If you try to use it as a spray and rinse product, you'll be left with a streaky mess, which is exactly what I got when I followed the instructions. The product will drip down the sides of the tub, leaving clean streaks in its path, but everywhere else, the soap scum will remain.
So, on my second attempt, I sprayed liberally and scrubbed vigorously with a rough sponge, and this time the product really worked. It took a few applications to get all the scum off the textured bottom of the tub, because I had to work the product into the grooves, but overall, the results were excellent.
Just one other note - unlike bleach-based cleaners, this product won't do anything about mold in the tub, so you'll eventually need to use bleach to combat that problem. The trade-off is that Rejuvenate's product can be used more frequently, as it doesn't fill the room with a chemical odor.
Cost Effective, Fast Results