I've owned a pair for a couple of years now. They have mainly been in my video system but have also spent a couple of stretches in my main system. It's a cliche, but these speakers have a "rightness" about them. If you have lived with a time- and phase-coherent speaker before, then you have an idea what to expect. If not, then you probably will be quite amazed by the Europas' coherence, clarity, imaging, and ability to make sense of complex musical passages. They have a full-throated, unrestrained quality about the way they play music -- many other speakers sound "choked" by comparison. As Sean noted above, they deliver the goods even with poorly recorded material. They also do very well at low volume, but they can rock (not a polite speaker).
Criticisms? To me, they sound a bit cold. Not sure how to expand on that observation except to say that they are not lean or thin at all, nor are they clinical or analytical. But they lack the "warm woodiness" of some other speakers I have. They are also a touch forward. For me, these characterisitcs make them less appealing for classical music, but very strong for jazz, rock, electronica and percussion. (They don't sound bad playing classical, mind you.)
So...highly recommended. Not sure what could be better at the price. And Roy & Co, are tremendous to deal with.