I've never done any pills (and the happiest milestone I passed recently is that I'm no longer eligible to do the Boots weight loss scheme that involves pills as my BMI is too low for it )
I've read that the only way a pill can actually work is if you start to do excercise, get used to EVERYDAY excercise and then use the pills just for "tone" or lost the final few pounds. If you are not in that level yet, pills are useless.
iv spent about 500 on different pills u would be better buying fruit and veg of treating yourself to a facial or something trust me. and be careful i ended up in a and e taking stacker 2!!!