The cacao is pretty good, but the other new flavor, nectar, is terrible IMO. Tastes like liquid pez. I still prefer the original flavor for meals. Cacao tastes more like a treat than a meal.
I don't like any of the flavored versions... Cacao was way too sweet, Nectar tasted like drinking a bottle of Windex, and while I actually kinda liked the Coffeist version, it tasted more like chocolate than coffee to me, and my understanding is that there isn't any actual coffee in it, just artificial flavors... so I would rather have a cup of coffee with my normal Soylent in the morning.
Nectar seems to be super polarizing. I think it's the best one personally and drink it about every day, roughly 3x more than original + coffiest combined.
I ordered one case of cacao but don't really care for the way their chocolate flavor tastes.