If you just want to chuck sugar in your protein shakes, then you can just buy skim milk powder instead of protein powder + sugar. It's heaps cheaper. It's what I do - I make a workout drink, 500ml milk + 100g skim milk powder + 3 eggs. This provides 73g protein, 80g carbs and 44g fat, or 1,000 calories.
I drink half before and half after my workout. The presence of the carbs gives an energy boost for the workout, and replaces lost energy afterwards.
Your body naturally carries glycogen - sugar - around in the bloodstream, half an hour of heavy workout burns this up. So if you load up beforehand, you remain fuelled for the whole workout.
The drink afterwards replaces the depleted stores of glycogen. Without that carb/fat intake afterwards, your body would start breaking down fat in your body to make more glycogen.
The protein part helps you grow muscles.
So overall, a drink like mine, and like what AJStrydom is suggesting, this is going to bulk you up. Provided of course the rest of your diet is okay.
Provided the rest of the diet stays the same over time, this will lead to a slow loss of fat. That's because as you build muscle, the body requires more calories just to keep all that muscle going. So if you don't care about fat while bulking up, or if you are happy for the fat loss to be slow, then this is a good workout drink.
If you want lots of fat loss, then your workout drink should be mostly protein, just a little bit of carbs/fat to fuel it.