Fly it before you buy it. There are plenty of people who will loan you one. I was recently shocked to find that the ships page is completely wrong about how it is loaded, and it does NOT carry a pair of S4 mounts.
It is fast enough and maneuverable enough to hang in a dogfight. It can take a beating. It can be outfitted lots of different ways. The Tracker and Ghost versions hold out great promise. However, if you are interested in the Ghost or Tracker, I suggest wait until 3.0 drops. Radar is about to be added into the game for real, meaning all stealth should be enabled. People will immediately be able to compare stealth performance between the Ghost and Sabre, and tracking capability of the Tracker against say a 315P, Reliant Sen, Lancer Dur, etc. 3.0 really should be a big advance for components in general, and lets hope they will actually fix the ships page like they said they would last patch.