I've used Kinh Lai (the seamstress's name) for years for shortening my pants. She's done some very difficult materials like Carhartt's duck with no problems. She is prompt, professional, her work looks perfect, and it has always held up with no exceptions. I haven't used many other tailors, because she does what she's supposed to, when she says it will be ready it is, so I can't compare her prices. Aside from prices (maybe?), she is perfect!