What’s your opinion about Dali speakers?

I’ve had Dali Mentor 6s since around 2012 and I’ve never felt the need to upgrade them on my mid-fi system, even as I have changed amps, sources, cabling, rooms, etc. they seem to handle everything I throw at them well. Excellent bass, smooth treble, very musical, excellent imaging, etc. I agree they are better at moderate to high volumes. I was hooked on Dali adder hearing Epicon 6s at AVSF — couldn’t afford them at the time and I found the Mentors (demo) at a good price and figured I’d upgrade later. Haven’t seen the need, but the Rubikores do tempt me.  
 

of note, they improved when I went bi-wire (I never tried jumpers) and they really improved when I mounted IsoAcoustic Gaia iiis. 

I've heard a few of the higher up Dali models and they all seemed excellent. The entry level stuff never really excited me but that's about par for the course for that price range. If I was shopping for new speaker I would certainly try to get my hands/ears on something from Dali's higher tiers if at all possible. 

I have listened to their lower level speakers a few time and felt they were fine. Not great but not grabbing my attention. A couple weekends ago I listed to the EpiKore 11 supported by VTL monoblocks and I was very impressed. Great bass control, and the high frequencies were very nice and accurate. Good all around and nothing I would change. Just one song so I can not comment on alot of different types of music. I got system envy.  It was at stereo unlimited in San Diego.