Tufonite is, for me, a unique route. Its uniqueness is not due to the level: it's a light 6c, indeed.
However climbing this line for me is always like the first time.
It's a precariously balanced climbing, with small, fingery holds. In the last part there are some compulsory sequences, not particularly difficult, but implying the risk of a whipper. You will swear at the route setter during these sequences, but then, at the next clipping, you will take back all, having experienced a unique emotion.