Powerful bubbles!
Great product.  I love this thing but there are a few issues.  Yes, a few of the suction cups don't stick but some do....and you're sitting on it, so who cares?  The noise it makes is no more than a normal bathroom fan. I think the bubbles make more noise than the unit.  If you want total silence from the unit, you could buy a 10 foot hose and put the unit outside the bathroom.  And the air from the bubbles is cooler than the hot water in the tub, not a big temp difference but you can feel it...but I like that.
Rating: 5 stars