In Nov 2016 I visited Savile Row in Hong Kong to have a suit made. (I had previously been there in Dec 2015 to have another suit made.) When I last visited them, the quality of construction of the suit, the fabric, and the fit were fantastic (as when I first visited).
Last month, I ordered a a second pair of trousers for my suit that I purchased last year. I dealt with Alex by email. He was extremely helpful and very attentive to my needs. I was able to organise payment relatively quickly, and Alex organised the trousers shortly after. He shipped them to me express post, and I received them 3 days after he told me he had sent them. He kept me updated throughout the whole process.
For bespoke trousers, and for the quality of fabric, the price was very reasonable.
I highly recommend Savile Row HK.