I've had three FW 13s (a first-gen for myself, a second-gen for my wife, and a third-gen for myself) and I suspect you will be pretty happy with it. What OS do you plan to run?
We're getting a factory seconds one for my son (he loves to tinker, so the fact that it'll need various upgrades is a feature, not a bug). If I were to get one for work, I'd likely start with Ubuntu, but I've really been looking for an excuse to run Nix for my main dev machine.