@Nick667 - I tend to get very strong citrus characteristics in my Kveik. Specifically, I use Yeast Bay WLP4045 (Sigmund Voss). I've brewed quite a few ales using it now, and have found:
i. Ferments quickly at room temp (20-25 C), but even more so in a warm part of the house (27-33 C);
ii. It does not clarify, even with serious cold crash for a week. This is not a problem, but some styles this may be a turn off;
iii. It isn't as "clean" as some people claim. It always imparts a unique signature, no matter how hoppy the style;
iv. I get very strong - citrus pith (white under the skin) and citrus skin flavours in my lighter beers. It is not sour, but it is very citrus-skin reminiscent.
Regarding bottle conditioning: this is a real strength. I find it conditions beautifully within 1-2 days. Seriously. I use two sugar tablets in 750 ml, and by lunch on the 2nd day, she's very highly pressurised already. I condition in a wine fridge set to 20 C. It "floc's" real hard, meaning there is an abundance of yeast sediment in every single bottle, but the beer also maintains a really strong haze, with suspended yeast.
I harvested my initial brew (a very light pale + wheat) that provided an extremely clean yeast cake, that I washed a few times and then made a starter on DME. From this, I stored off in 50 mL falcon tubes... Each tube has ~5-10 mL of yeast, and this is plenty to start the new brew. It really doesn't need a whole lot to get going. I haven't had any off flavours from this initial harvest, so I'm not bothering to keep any from the 3rd generation (I just discard the trub from each new brew).
Because it is so useful at room temp, I now use fwk cubes to brew Kveik beers as the temperature control doesn't matter (I actually try to keep these warmer!), which saves my fv for the temperature controlled brews.
Hope that helps.