Don't worry, you most likely won't get any intense effects at all. Most people i know don't get intense effects, the effects are there but not as intense as you may expect. If you really wanted them to go away they would, it's not like you have actual chemicals flowing through your system affecting your brain, it just puts your brainwaves in a different state (temporarily), if you got scared you could easily usher the effects away, and if not you could always just use reset. They aren't drugs and they won't provide an intense experience like real drugs will, although you will feel something.
Go for peyote, trip, marijuana or hash quick hits, acid quick hit, or lsd. Those are my favorites. I've heard divinorum is good and so is quickhappy if you just wanna be euphoric.
Well hash is 45 minutes and hashQH is 10. I haven't bought the full length one but when i emailed i-doser they said the quickhits try to get the same effects in less time, so you might as well just do the QH.
Not really...I wouldn't go as far as calling them fake drugs...maybe brainwave entrainment is the bomb? If you think they're awesome you should try some real substances.
If I may suggest anything, I would go for nitrous. You can go out an buy yourself a pack of whip cream chargers and a cracker. Then inhale the good hippy crack. Its a short trip, and a good high (kind of like a starter i-doser?). Plus its legal and easy enough to get, hide, and does not leave any indications that it was there (bad smells). Anyway, just have a friend over with you to make sure you dont suffocate.