Vicegerent has the best custom suit experience I've ever gotten, by far. They're very friendly, and go the extra mile to understand what you're looking for out of your suit.
Their fabric collection is also great. The sheer variety of materials, colors, and patterns that you can select from to create your suit is impressive, and they've got some really beautiful ones.
The amount of customization you can get is also amazing. From your suit's lapels and buttons and pockets, to embroidering a name or design on the inside, to having them make entirely unconventional garments - there's a surprising amount of requests they'll take on.
And when you get the final product, the fit is immaculate. And they make any adjustments if needed.
Hands down the best place to get all your custom menswear. I've come back multiple times, and they never disappoint