I've had my r3's for a couple of weeks, and I am thrilled with these speakers.
Imaging is fantastic, and the frequency response is smooth from high to low.
Bass response is impressive, and remains coherent at louder volumes. In my experience, some bookshelf speakers boasting lower frequency extension are actually sloppy or congested at louder volumes or with rock music. Not so with the r3's.
These speakers have an exceptionally clean sound, top to bottom.
I am travelling for a couple of weeks, but will post a more detailed report when I return.