Makes no noise at all until you start to draw and then it's the sound of bubbles.
My experience so fart is that I turn it on and go do something while it warms up, it's left on all day and evening and I turn it off at bedtime.
When I want a hit, I load a bowl and have one, probably get 3 hits off a sprinkling of dope on the screen. I can do the same load in one hit with a really slow draw too. Very adaptable.
Tastes cleaner than clean. The glass and the titanium are 100000000% better tasting than plastic whips, plastic bags and plastic cooling units.
Bad dope still tastes like bad dope in it though, I have been known to fuck a cure up from time to time (mostly grow to grow )
But after all the griping over spending the money on it, I'm kicking myself for not buying it years ago.
I've burnt my fingers on the bugger already too. That still smarts.