I also have some online experience with Daraz.I am pretty sure it is a convenient site to order and select goods.
I have ordered perfumes,watches,sun glasses and some ornaments.Most of the time they call and confirm the orders before the processing.Though the package delivery days ranged a week or more ,(depending on the online sellers )ordered items were on hand without damages.
Daraz also offer combo packs and discounts.Shipping charges are also reasonable.What I love the most is their customer service feedback calls, which I always answer to say '☆☆☆☆☆' for the service.
All over, when it comes to online marketing the cons are inevitable.So, my advice is to select branded sellers and buy less costly things.