I'm not sure how helpful my reply will be, but here goes...
A few years ago at Axpona, I had the opportunity to listen to the Adagio's bigger brothers, the Crescendos, and I was gobsmacked by the music that flowed from them. There were 2 other pairs of speakers at the show that grabbed me by the lapels and wouldn't let go <so to speak>. One was a pair of Daedalus Audio Ulysses, and the other pair was Salk Sound's Exotica 3 speakers.
I didn't buy the Crescendos, but they were one of three pairs that occupied my thoughts for months after Axpona. Ultimately, I bought a pair of Lou's just released Apollo speakers, and have never regretted my decision.
I would expect the Adagio speakers to sound wonderful and to last many years.
Michael