Hi Morschee, I picked this up a couple weeks ago

I haven't put too much time into it, but I already love it! I grabbed the bundle that comes with both Star Wars level packs, and I haven't even gotten into the levels yet because I'm having so much fun with the Hub world and Toy Box
It is quite a massive improvement over 2.0, even in the quality of the figures

I picked up Darth Vader yesterday, and you can see the grooves and buttons on his lightsaber. It's amazing!
In terms of gameplay, chat to Trevor or Video Vengeance, they've played it a lot more than I have. I have heard that the level packs are better than 2.0, especially the original trilogy levels (Falcon space battles!). I definitely recommend it
If you get it for PS4, add me if you want to play online sometime