FWIW, I have/had the Martin Logan Motion 15, the HTD L3s, Infinity EMITs and others (not all technically ribbons), and more than anything else I'd say the results depend on how well-damped your listening environment is and especially what sort of music you favor. I listen to a lot of acoustic piano jazz and the shimmering, evanescent effect from these tweeters can be captivating. With hard rock and even full-orchestra classical, not quite so much. There's also the matter of personal taste. In all, quite a number of variables--which is more the rule than the exception in this business.