Trust me, neither tweet is a 'quart style' tweet. But I will tell you that if you are coming from a high detail tweet, these hold back alot- a lil' too warm and laid back for my personal taste. And I have grown out of the whole poly/mica cone sound out of mids....just not authentic enough.
Both sets are nice sounding without a doubt and make for good listening. I'd go with the UR's myself, i like the tweeter better and tonality of the mid better. But if you are craving more realism, emotion, and airiness...i'd look elsewhere
If you want smooth, 'wet towel over the speaker' sound...you are in the right ballpark