^ somone else correct if i'm wrong, but the benzene ring is in all amphetamines and phenethylamines by definition; so this is no more cancer risk than any of them (like benzene, the benzofuran bit itself is carcinogenic too, but i guess it's as likely to be a problem in this compound as benzene is in any phenethylamine).
I personally really enjoy 5 and 6-apb and don't find them all that toxic feeling (whatever that means) aside from the usual md-like side effects. But i always account for being awake for at least the next 10 hours when i take it (i like the residual stimulation personally). I've taken 6apb lots of times since it arrived in august, and 5-apb thrice, and i'm not dead (or depressed or anything), so short term problems at least seem minimal (or within the usual md- range). (and (blasphemy) when dosed right, i actually prefer it to mdma myself (longer lasting and trippier) - obviously ymmv (i'm probably weird))
/also, the above report seems to have a salvia report stuck in the middle or something (or am i reading it wrong)