Halo, in my opinion, just terrible. I haven't found one flavor from them that I liked. I've tried their
-Malibu
-Freedom
-Menthol Ice
-True pure
-Cool Mist
-Tiki
None of them were any good, at all, to me at least.
When you try Boba's, (yes, I say when, because you're going to want to... trust me), completely forget any assimilation with 'tobacco flavor' and 'Halo Juices'. Of all of the juices I've tried, (well over one hundred, from many many vendors), nothing compares to Boba's Bounty or Alien Visions in term of quality, in my opinion, of course.
If you've read any reviews on the stuff, you'd see many saying that it tastes of chocolate, oatmeal cookies, raisins, and many other verbs used to describe the juice. Personally, I've no idea what it tastes like for the exception that sometimes after just brushing my teeth, I taste fudge.
So, yes, as you indicated, taste is subjective and you'll probably taste something along the lines of what most taste, simply because you're expecting it to taste any certain way. In the long run, this is one juice that is a must try.
If you're going to try Boba's, you simply cannot ignore these other greats (my opinion) from AV.
-Gorilla Juice (tastes of a robust banana nut bread)
-Root Beer (If you're a fan, closest thing to the real deal I've tried)
-Blueberry Crumble (Very tasty)
Those are just my personal favorites thus far.