Christian buddy,..I would wait to listen to either answer until you can give further details of your current situation.
Why? yo ask....
Well, if you are new to serious dieting and haven't tries all your options then you want to hold off on this one. If you are an avid lifter and have kept your diet in COMPLETE check for years and still have that last little bit of fat to lose and have tries ALL OTHER OPTIONS, then it might be worth it. If you have a history of Diabetes in your family then I would say no, just in case you get it yourself and that just happens to be what the doctor gives to you.
Also, IF this is the route you plan to take, just to be on the safe side you may want to go to your Doc to get a complete blood work-up done and check your lipid profile to make sure your healthy enough to take this without having doctor supervision to do so.
So the answer is, YES, it will help you lose some fat, if taken correctly, and NO, if this is your first crack at getting lean and have no experience with dieting and working out.
Also, if you can, get a glucometer to check your blood sugar often as to not go hypo.
The comment about control is semi right. To completely control your sugar and insulin response you need to keep track of more than just the amount of carbs you consume. Mainly its ability to release insulin and at what rate and for what length of time.