I will agree with everyone else - the MBV liquid that I've tried HAS to steep to reach it's full potential. I've ordered 5 flavors, 3 were *meh* with not a lot of flavor right out of the mailbox, and two were very chemically and strong. A week to 10 days later and they're all good.
I have not had their brown sugar, but I have tried it from another vendor and (right out of the mailbox) it was HANDS DOWN the worst juice I've ever tried. Smelling and vaping made me think of sweaty roller skates. I've thrown it in a drawer to steep and that was... maybe a month ago? Honestly I'm a little bit skeered to try it again. The point is, kinda like many cherry flavors can initially taste like NyQuil, brown sugar may be one of those flavors that really needs time to steep (regardless of the vendor).
I have not had their brown sugar, but I have tried it from another vendor and (right out of the mailbox) it was HANDS DOWN the worst juice I've ever tried. Smelling and vaping made me think of sweaty roller skates. I've thrown it in a drawer to steep and that was... maybe a month ago? Honestly I'm a little bit skeered to try it again. The point is, kinda like many cherry flavors can initially taste like NyQuil, brown sugar may be one of those flavors that really needs time to steep (regardless of the vendor).