I think part of it is that they do use a variety of flavorings... some in house... some designer or pre-made... they make their own nets... they have different absolutes and flavorings... I think they aspire to bring something unique to the marketplace...
Their Base and nic is incredibly clean... no proof, but I'd wager they don't use the cheap vg/pg or cheap nic...
When I DIY, I get my nic from xtremevaping and I notice a big difference from their nic versus wizard labs or RTS... it's also around 3x more expensive... but worth it to me... I know a small handful of vendors that pay significantly more to get bette pg/vg/nic...
No proof, but I bet ahlusion gives us the better stuff.
Their juices perform well in a variety of
devices...
They have some really unique flavors...
Those are my guesses...
I don't buy from them a lot... mostly because I am into other stuff... but I would consider their juices among the highest quality... and again... to me... quality means performance, flavors, inspiration -
but as someone said earlier.... your own perception does have a lot to do with it