I went there today as well. Worth it? Yes. Matches up to the quality of the originals. I honestly never expected the originals to be in their roles ever again and hardly expected to get such a treat of so much Han Solo + Chewy time.
I also felt engaged with the new characters. I *WANT* to know what happens with Rey. I WANT to know what happens with Kylo Ren. I WANT to know what happens with Finn. I *care* about the new cast.
EXCELLENTLY done and yes, even still, it can stand alone. Star Wars always had that “I’ve just been dropped in the middle of something that’s been going on a long time” feeling and this captures it perfectly.