I took stackers 3 and lost about 20 lbs in like a month and a half but you have to be careful because sometimes you forget to eat and then you get in a habit of it and thats not good I came clolse becoming anorexic my husband had to get me to stop taking it but yeah, stackers work and as far as drinking water drink lots and lots of it I know, ughhh, but you have to kind of let your self get used to it. try putting lemon in it or splenda in it. it changes the taste some.I have also heard that if you take your weight divide it by 2 that is how much water you are suppose to drink and as far as staying close to the restroom, only for the first few days then your body gets used to it.