it could go either way u could have a good trip n have a scream of a time but its more likely to turn out bad
they affect u as to what frame of mind u r in at the time if ur happy n relaxed at the time of takin them and not paranoid about havin a bad trip u will enjoy it but if u dont look out like smokeypotter said they r nuthun like pot so dont go n take too many just coz ur m8's got a kilo use some common sense n u should be ok

peace