I came across this forum site and I think it would be useful for others to share my experience with online bespoke tailors.
I never thought about buying a suit until I started looking for a job after graduation. However, I am too small and I couldn't find any suitable suit in the local shopping mall. Making a customized suit is extremely expensive (from CHF 800) in Switzerland. So I tried to look for something on the internet.
The first thing I found was Indochino, the cheapest option is about $450 and it takes 1 month for delivery. I was about to make the purchase when I found another online store Matthewaperry. The cheapest option is about $200 and it takes only 2 weeks. The price seems to be too low to be true and I couldn't find much reviews about this store on the internet. I ordered one suit and one shirt. Two weeks later, right before my first interview, I got the package from DHL.
The suit fits me quite well except that the shoulder is a little loose. The fabric is very soft and comfortable. I couldn't find the details about the fabric on their website. I don't think it is from first-class factory but it certainly doesn't look cheap. Anyway I am very satisfied with this suit. I wore this suit to various interviews and eventually got a job offer :) . I do recommend people with low budget to try Matthewaperry. Their website is not very well designed which makes the purchase process not fluent. So it's better to contact their customer service in case of problem.
PS: The two review articles might be helpful.