I am in the midst of testing it, I use 464, and can't tell if I suddenly have mid-life allergies or if, indeed, I am irritated by the scent. Today - day 3 of burning two different wick sizes of it - I'm less irritated, but it's been a lovely, all windows and doors open kind of day, so I also haven't smelled it a lot, if you know what I mean So none of that is helpful, a month after you asked, but I'd be curious to know what you thought after your testing @Trappeur? PS - CT is good.