YouSky7 has a rating of 5 stars from 1 review, indicating that most customers are generally satisfied with their purchases. YouSky7 ranks 21st among Drones sites.
I was desperate to get a set of propellers made for a quadcopter that is no more manufactured. They are excellent, quite better than other ones of the same size. I found them only on Yousky7, at a higher price but that's legitimate. Economy shipping took one month which is usual. I'm now able to do what I intended to do with these propellers. Thanks Yousky7!