The 'problem' with FSS is simply the learning curve. Except long time players have conveniently forgotten that the whole game was also a big learning curve from the get go and are now griping they need to learn something new. Brand new players to the game who run into the FSS mechanics will learn it like they learn the rest and won't feel it as being any harder. Just part of learning the game.
Now, personally, I'm not going to make any snap judgements yet. I want to take the time to properly map it all out and learn it. From what all long time testers have said, scanning planets now is MUCH faster than it used to be. While before, a simple honk revealed only the basics of planets but still needed you to fly to it to scan it, it now takes a few minutes longer to spot all planets, BUT when you do scan it from a far, it counts as if you had flown to the planet and did a DSS on the old method. The whole probing aspect is ON TOP of that. So the credit earning potential is MUCH MUCH greater than it ever used to be.
And of course, thematically, it's much more interesting.
Also, remember that unlike in previous versions, if another player scanned a system and cashed in, that data is available to everyone. So you'll never find yourself in the bubble and unable to find your way.
So I'm going to give it a few weeks for me to orient myself with the new system. And I'll make a judgement call then. I just don't want to do what so many are doing and complaining about something they've barely glanced at and crying foul.