It's the first time that I purchased a shoe with a rigid heel counter, so I'll let you know if it's helping with having less heel friction and avoid getting blisters, most probably ;).
But the quality is good, if you have wide feet and have your own insole it's a match for you.
They are comfy and well designed to fit wide flat feet I choose a size 39 EU and even my bunion is doing okay 👍