I've purchased 3 suits and a blazer from Indochino. They have a $75 alteration credit, which I used on my first suit and blazer. I measured myself and actually did it 3 times before I put in my order. Their customer service is top notch and I know they will remake a suit for you if the measurements are way off. They used to have a lot of promotions where you could get a free shirt or a certain percentage off a suit, but they seemed to have moved away from them. As long as you stay away from the blends the fabrics are fine. They have also moved toward a higher price point with Italian fabrics, but I don't have any experience with those. I've had suits made in Hong Kong and the fabrics used on the Indochino suits I have are superior. I found the following website to be a good source of information on Indochino:
http://www.indochino-review.com/
They have also done reviews on other M2M online retailers. I wouldn't recommend their shirts at that price point though. If you want to take a look at the suits I own send me a PM.