My tailor is Rupen's Custom Tailors at 40th bet 5th and madison. Always done me right - good prices, fast service and a no-bullshit attitude. One time, I bought a suit from Banana Republic (this was a long time ago, ok? so spare me) and Rupen takes one look at it and says "I'm not doing anything with this. Take it back to the store." He asked me how much I paid and when I told him $350, he matched that price and sold me a gorgeous deep slate blue worsted wool suit instead, on the condition I returned the Banana one. And the alterations on the other suit he did for free. Highly recommended.