I didn't buy the Madoka cospay from them, but I bought that Sayaka Miki cosplay from them. It's really well made, and looks great, but the only problem is, it was WAY too big. May have been a mistake on my part, but who knows...
I had to resize/remake a lot of it, but otherwise, their quality is great, and it looks great in photos.
I just hope you were careful when measuring yourself, and inputting your size, because it will be very difficult to resize a Madoka costume! >_<
Here are some pictures of my costume, even though it's not the costume you were asking about it's probably similar materials and similar quality: