Local Polish kielbasa can’t be beat, but for a selection of fresh, unique artisanal sausages featuring recipes from all over the world, you should stop by The Meat Hook on the eastern edge of Greenpoint.
The Meat Hook is a sustainably focused, fully stocked butcher shop helmed by three incredibly talented butchers: Tom Mylan, Brent Young and Ben Turley. Just three fun, likable guys obsessed with meat, making sausages…and picking on each other.

They also make kielbasa and provided me with a few sample rings to taste test with family. I don't know if they're doing more fine tuning, but the current recipe (version 3.0) can hold its own with Steve's and Nassau Meat Market.
I tried some of their Cheeseburger sausages last weekend. They were incredible!
So glad to hear you had good experiences! I'm dying to try their kielbasa.