I just make up a milkshake with it in the evening, 25g is about 100 calories, and supprisingly filling as protein takes longer to digest.
If I know my meals arent going ot involve much protein (soups, sallads etc) then I have another in the morning after excercise.
Always best to drink it imediately after excercise. And only really after hard excercise, I wouldnt bother after a gentle road ride or a commute. Its got the added benifit of helping the body absorb sugar/carbs into the muscles rather than getting a sugar rush or turning them into fats.
And yes, its probably better for you than guniness, but far less tasty.