You'd be surprised how much of a beating the keelback can take when fitted properly, and I'm not just talking engineers. Shields are average at best but the hull tankiness is immense. Combine the two and safe to say you have plenty of time to jump away.
However for a haz rez take a gunship. You won't regret it.
Oh I'm well aware of the gunship. Its bad jump range and extremely limited internals just kill it for me, though. Plus, I'm specifically looking to set up a keelback- if I was looking for a fighter carrier in general, I'd just keep using my anaconda.