I really love my Andra ll's. Previously to the Andra's I had the Legacy Focus which is another great " Rock" speaker. I listened to many speakers including the Thiels,Wilson Watt Puppy 8's/ Sophia 2 and I chose the Andra ll's.
To me the Watt Puppy had a disjointed sound between the bass and the rest of the music. The Thiels sounded very lean. I have never listened to the new Wilson Sashas.
I am also using a Pass Labs Amp the X350.5 to drive the Andra's. But I think the Mac's would work great also.