Ah I found the seller you are talking about. I've not ordered from them but from their rating you can tell they're legit. The nappies are cheapies but that doesn't mean they're bad (I've got a couple of a similar type - from a different seller). You'd have to try them out on your DC to see if they work for you.
I use them, they are good. The Velcro version is better for tiny babies, the popper is just ok now, my daughter is 5 months old. The seller dispatches quickly and the designs are cute. Seller is on amazon too, google little bloom nappies. Same seller, same nappies but they come cheaper on eBay.