After reading reviews on a few different websites, I decided to visit Jesse & Son to get a new suit and a couple of new shirts. From what I'd read, they had a finer attention to detail than some of the other well known tailors, were reasonably priced, and could make suits the fit the tall/slim build that I was after.
The shop is just off Rama I, on Sukhumvit Soi 10, it's easier enough to find, but a little further away than the grouping around Nana BTS.
When I got there, I was made to feel very welcome, and relaxed. It was a super easy experience, with a whole heap of fabric types and colours to choose from. I ended up getting more than I initially thought, just because they had so many different fabrics to select. The process was super easy also. Select the fabrics for the pieces you want, then use an ipad to go through the different styles and additions, pick the extra details you like (lining, stitching finish, initials on cuffs, etc.), get a measurement and come back in a couple of days. From start to finish, I think it might have taken two hours of my time.
I ended up with a suit, blazer and pants and seven shirts, for roughly what I'd pay for a suit and two shirts back home. I also let them have a bit of creative control on the blazer and pants, and I'm super happy with the end result. The pants I wouldn't have chosen if left to my own devices, but I'm very glad I listened, they're probably my favourite item.
Overall, I can't fault them. I'll be back for a few more items. I'd definitely recommend to anyone.