Very wise words; like I've said in the post and to a few commenters, it's weird, I definitely don't feel like I'm affecting my reward centre. I don't crave it, I'm not dying to get on it, and some days, if I don't take it first thing in the morning, I forget and then don't bother because it gets too late and will keep me up.
Like you said, it's always good to read about other people's experiences and do as much research as you can before taking anything, and starting off with small doses.