I sold my 2019 Carbon Expert Levo and ordered an Orbea Wild Team. The Levo/Brose motor only lasted me 450 miles and the bearings were grinding. My buddy's Levo is doing the same thing with about 600 miles. I did the MyO so I wont have it for a few months. I've read a lot of reviews and it sounds promising. The geo looks great for climbing (seat tube angle) and descending (headtube angle).
A buddy of mine rode the Bosch Gen 4 and said its way more quiet than the older version and almost as smooth as his Levo/Brose. He also said the power was dang close to the Brose. He said the Bosch Gen 4 doesn't have much drag once you hit the 20mph restrictor either, much like the Brose. From everything I've read and heard, the Bosch Gen 4 is as close as you'll get to the Brose, but more reliable.