I've tried a lot of different legal highs and it's all about finding the one that suits your body!
I personally get along fine with BZP (in P.E.P. pills among others), but i know a few friends who feel sick or get terrible headaches or insomnia.
A couple of things no-one has mentioned:
One of the advantages is that you know what you are putting into your body (can you say that for the dodgy pill you bought from a stranger?)
A tip for those who are going to take these pills. Some like Majic come with 2 serotonin boosters on the flip side. These ease the come down and headaches! You can buy large bottles of these from places like Holland & Barret (called 5-HTP).
"5-HTP is a potentially valuable dietary supplement that promotes the body's production of serotonin"
I usually take a couple before bed after a big night and a couple first thing in the morning (or afternoon, whenever i get up!!)
So I say find what suits you and don't do what everyone else does!!