I guess I had one of the few poor experiences with Wilfred.
This was a few years ago. Took a cashmere PL coat to have the shortened, button holes cut and a small roll behind the collar removed. The sleeves were fine - machine sewn holes - but one shoulder came back with a large bubble over one side. They redid it and the shoulders were wavy on both sides. They said that was my shoulders so I brought in another jacket of the same material and cut and the shoulders were perfect. They redid it and the shoulder line was still wavy. Wilfred said he couldn't do it again as the material was too delicate. No refund, though he did give me the bullshit line "wear it for a while and it will settle." Wasn't expecting them to cover the cost of the coat, but a refund of the $160 alteration didn't seem unreasonable.
So this beautiful cashmere coat sits in my closet waiting for the day that my shoulders get lumpy.