I feel I must weigh in on this iTailor debate, as I have ordered a few things from them. To preface my review, it is important to note that Styleforum has a wide range of consumers. Clearly some who have lots of money to spend (up to $350 on shirts in some cases) and others who would like to be stylish on a budget. As a former arts editor of a weekly who takes clothing seriously as a personal interest I am picky and exacting about both fit and fabric. I have dated a milliner (hat-maker) and the product developer for Ugg's men's clothing department was my girlfriend for years. However I make a pittance in the mental health field and have to shop cautiously.
My first shirt from iTailor was a euro-fit shirt made of white organic cotton, with an "Italian" style collar, French cuffs, and with contrasting white-with-blue flowers on the back of the placket and the inside of the collar band and back of the cuffs. It had two buttons on the collar. To be honest it was a decent shirt that fit like a glove - and truly fitted shirts have been my obsession for years. Sadly I measured my torso too short, trying to strike a balance between a shirt that tucks in with a tie and a shirt that can be out and still look good (and I chose a straight cut rather than tails), and I learned that your measurements are ESSENTIAL and that someone else should measure you. The Italian collar is a broad cut and reminds of the "Tall cutaway" collar on some Hue & Crye shirts.
I then ordered a suit in pinstripe, and to be very honest, the pants are really good, nicely finished, lined, and very snug. They are truly "fitted" with not much room at all - so be aware of that if ordering. The jacket was too wide in the shoulders, which was my fault for trying to measure myself, but fit well everywhere else. It did have a somewhat heavy interlining as another reviewer has point out. The vest was an absolute disaster, and I would not order another one.
I have ordered a few more shirts and they always fit well, and I ordered one for my brother who also liked it. I then ordered a pair of grey with light stripe pants for my wedding (well in advance, obviously) and they fit beautifully and were finished well, and again truly snug and fitted which I like. It was very nice to be able to order them longer in the rise (crotch) so that they would come up to the buff colored, straight-bottom, double breasted waistcoat I had ordered from Charles Tyrwhitt and not leave my white shirt exposed in the middle.
So to summarize, pants and shirts from iTailor are great if you are properly measured, vests are poor, and jackets are probably not a good idea either.
Meanwhile, has anybody tried those Hue & Crye shirts?