The dosage depends on the level of soiling and the hardness of the water. Pollution levels are indicating slightly above normal to heavy, the hardness goes from soft to medium to hard / very hard. For normally soiled clothes and water with medium hardness as you need for. 125ml detergent. The detergent is added either in the bleach dispenser or using a dosing ball that you can order free of charge. Personally, I pour the detergent directly to the laundry, which works just as well in my opinion. The laundry comes out clean from the machine, it can be seen no more smudges. I also have the impression that the clothes softer feel.
The clothes smell but for my taste a bit strong to detergent. The pleasant, fresh scent of pure detergent appears to be enhanced by washing several times. Even after days of liable scent the laundry still on, which I personally do not like so much, because I constantly had the scent in the nose when wearing the garments. A light, fresh scent is fine but this scent reminds me almost of fabric softener - the manufacturer side is in the way, no detergent included - and is just too much of a good thing.
Washing performance is good, everything is clean out of the machine, personally me only the strong scent that bothered. Many others, like the fallen, I would have a neutral to light fragrance have preferred.