I'm using QA 3020i's with WiiM Amp, but I'm not finding them harsh at all. My sound is not very detailed, but is nicely balanced and pleasant to listen even for longer sessions.I have Q Acoustics 3020i. I found them a bit harsh as well. I tamed the highs a bit with the parametric EQ and now the sound is great!
My speakers hang on the wall with the rear port plugs inserted.
Speakers are positioned in a bookshelf (not a good position, but I have no other option in my room), 250cm from each other and my listening position is a bit less than 3 meters away.
I will, however, audition some more speakers, in order to find out if there's some better synergy.