I am embarrassed to share with you, that I NEED a hefty strength bathroom cleanser. Because it is one of my least favorite chores, I tend to do it far less often than I should, leading to some remarkable soap scum buildup. I have tried so many different cleansers. The Soft Scrub Deep Clean Foaming Cleanser works WONDERS.
It is reported to have a fresh pleasant scent. While it may not be as harsh as most heavy duty cleansers, it is still strong enough that it is necessary to use in a well ventilated area.
The directions say to simply spray on, then wash off. For heavier buildup, let set for a 1-2 minutes. I am a woman with a toddler, so I frequently (accidentally) end up leaving the foam on until it dries, then reapplying, hitting the area lightly with a soft brush and rinsing away. MAGIC I TELL YOU. PURE MAGIC.
This product also works on hard water deposits, and calcium or lime buildup. I have seen this work on hard water stains, but not quite as effectively as it knocks out the soap scum.