2013 here. I got to say, it's worth it to me but unless you were willing to take the risk way back then, I don't recommend pledging for anything anymore. That ship is about to sail and the later you are to the party, the less beneficial the backer perks became. Wait for full release, it's likely not any farther off than the time it could take to 100% your existing backlog of Steam games, or for a community-focused/multiplayer game like THE FINALS or Deadlock to mature and/or become a ghost town.
I bought the base package in 2018 I think. Never bought any ships or any of that crap. Some friends have told me I’ve been scammed but I’ve got my money’s worth in playtime already so I’m just happy to coast along and see actual incredible game dev innovation
As a praetorian concierge, I've done my part to finance the game and even if CIG failed to deliver I have more than 2000h on the Alpha so it would have been largely worth it. Now that CIG succeeded to remove the last huge release blocker? Worth every penny even more ^^