I've owned a number of Lyra cartridges, including the Delos and the Kleos. I'm not sure why I keep buying them because I really don't like them. I generally find the Lyras very fast, but lean and with a hot treble. The Delos and Kleos were no exceptions to this. (I actually thought the Delos was better than the Kleos, the latter being strangely bland. At least the Delos had some character.)
I understand why people like Lyra cartridges, and there is certainly nothing wrong with this. Personally, I prefer a fuller, richer sound with less treble emphasis, such as the Benz Micro cartridges. I am currently using a VDH Black Beauty which has the speed of the Lyras but with some of the warmth of a Benz and a more balanced sound.