The sad thing about scenting inks through Pendemonium is that once they run out, there will be no more. Apparently, the person who formulated the scents stopped making them a while ago. The choices keep dwindling. I was lucky enough to get a Waterman Violet scented with violet, a PR Black Cherry scented with black cherry, and a Duke black scented with delphinium (Pendemonium may still have that last one), plus a few others.
I also have some of the J Herbin scented inks, rose, violet, and lavender, and the 'man scented' one (kind of... sort of... an after shave scent), all except the violet were purchased from Pear Tree Pens.

The violet I bought from Pendemonium. Those, plus two from MB - Je t'aime and Season's Greetings (from a couple years back; I forget which year, though), are my scented inks.

Yes, I do have a lot of them and enjoy writing with them very much. What has already been said is pretty much my experience as well: lovely scent when writing, no real scent on the paper, especially after the ink has dried. I also haven't noticed the scent lingering in the pens I've used the inks in, but I obviously can't say that would be true of all pens.
There's a company in Germany that has a LOT of scented inks that I want to try, but I haven't worked up the gumption to put out the effort it would take to order them.

Some of them sound wonderful.