1.) Quality
Great quality, real leather, they are sooo beautiful. Really comfy and I can wear these for long walks.
2.) Sizing
I consider myself a UK 3.5/4, I had to size down in the Mary Jane tabis to a size 36, the size 37 was much too big. Note that it is soft leather so it adequately stretches to your size and foot shape
3.) Customer service
10/10, super helpful, very responsive