I wrote a short review of Mary Frittolini's shirts a few months ago: http://bespokeetc.blogspot.ru/2013/08/blog-post.html (yeah, I know -- the text is in Russian, but pictures speak on universal language).
Also, a couple of pics of my finished shirt:
As can be seen, buttonholes are sown by hand. Buttons also attached by hand; and the monogram, of course, hand-made as well. Machine-made seams are incredibly tiny and neat. Collars and cuffs are fused.