I wasn't intended to do so but all my beer in 2019 were brewed with kveik, mostly Voss, a couple with Saure and Hornindal, they make good beers, my experience was with farmhouse strains not commercial isolates. My strain of Voss developed an issue where it would have a slow secondary fermentation in the bottle after about 4 months which would lead to over-carbonated bottles, still drinkable but a pain to pour.
I never got the orange and spice from Voss, more of a strong earthy character which worked nicely in a stout but not in other styles, no one else seemed to get it as strongly, although An Ankou's experience sounds familiar. Saure was good, much more mild, but again it was used in a stout, Hornindal brewed 2 beers, one came out clean the other had a belgian/banana kinda thing going on which wasn't good for the style being a British Golden Ale.
A final thing I noticed was that all my kveik beers had a lot of body and never seemed crisp or refreshing so I swapped back to standard strains in 2020 and carried on with other brewing projects.