The shit sure doesn't feel like much of a serotonin releaser. It's a horrible dirty high, i don't think it's worth it.
It is definitely smokable - that's how it's supposed to be taken (by inhaling the vapor). You'd need to do an A/B extraction of it to get it to where you'd be able to vape it (because of the horrid herbal oils in it.
I would NOT EVER TAKE THIS STUFF though, through any ROA. It felt like it did some damage to me, and the high was pretty poor as far as stimulants go. A sort of hyped up bouncing off the walls jittery high with a high body load (vasoconstriction, rapid heartrate, etc). I'd take buphedrone, IAI, amphetamine, ethcat, or even DPMP over that shit, any day.