I’ve just tried the V3 vanilla too. I’ve only had U&U before which I enjoyed but I thought I’d branch out (I haven’t tried V.2.3 Original or Vanilla).
For me V3 vanilla is fairly unpleasant - I don’t really get any vanilla, its more just of a sweetener taste and aftertaste. I’m going to try it with the flavour boosts to see if I can mask that, but think the extra sweetener in the boosts might not help.
I think I might try mixing half and half with U&U but I don’t think its necessarily the sweetness thats the issue, its more the sweetener taste/aftertaste (I’ve never been a fan of sweetener in coffee/tea etc so I might just be more averse to the flavour). The black edition might be better as its got the coconut sugar in instead which I’d imagine would taste nicer.
EDIT: Can confirm vanilla definitely tastes much better refrigerated - brings out the vanilla a bit more and masks the sweetener a lot. Still think ideally I’d like half to 3/4 of the current sweetener plus a little more of the vanilla extract - I might experiment with just U&U and a vanilla extract and a tiny bit of coconut sugar or xylitol to find the right balance for me.
I also don’t like mine cold and have had no issues letting it sit for up to 5hrs at room temperate. At about 8hrs it can sometimes start to sour a little but it’s just noticeable and I’ve never been ill from it.
If you’re doing it to mellow the flavour or improve texture I find it only takes about 30 minutes to an hour to do this at room temp.
I’ve only tried Black Vanilla - I like it - I find it to be very close alternative to 2.3 Original but just a little sweeter - not much but noticeable. the vanilla taste is quite pleasant especially after standing and easily palatable to drink on its own with no other flavourings.
I tried V3 for the first time yesterday, vanilla as I’ve always had with previous versions. Taste wise I love it though I think I need a bit of experimenting to get a decent water powder ratio for it. The only thing I’d say, which a lot of other people have also said is that it seems to clump a lot more than older versions.
I just tried the salted caramel flavour boost in it, and damn, that is delicious!!!