After drink for so long that I think I have an opinion here I would say...
Pros: Something for everyone under its spectrum of effects, there's a lot of ways to prepare it, impossible for me to panic on it, makes sleeping easier, impossible to be physically addictive (in my experience if I use a lot in 4-5 days in a row which doesn't happen much anyways I'll get some stimulant like bounce back after a day of not having it but it's easy to wait out, never progresses beyond that).
Cons: can cause some bloating or other digestive issues depending on person and how much you use, dermo wherever you're prone to it but that seems to arise from long term use anyways (with me hands and lips are sensitive to it) but all you need to do to reverse it stop using it so it's not permanent, if you have more than you can handle you can become lethargic and depressed, some people can't stand the taste or how long it takes to prep it, the price.
So a lot of the cons are mostly from the the roughness on the body of ground root itself and it only gets to be a bit too much for some further down the line. If your a heavier drinker and tend to have a lot at once for days when you do you're probably going need a more nutrient dense diet and learn how to balance it with daily life but it also won't prevent you from doing anything either. I'll sometimes get that initial anxiety upon drinking but I'm pretty sure that's only my body reacting to the sudden ingestion of kava physically before getting to work on it because it always disappears and I can sleep on it well later. I would say the dermo is the worst aspect of it if you get it, everything else is easily manageable if you have control. Except the price, can't do anything about that besides knowing what you like and normally use and stick to it without going overboard.