It's too easy to dismiss people's unlove for this movie as that, so we probably shouldn't do that. I grew up with this stuff and adore the first movies. That said, I think TFA and R0 are the 3rd and 4th best movies and can fully admit to the flaws in original trilogy (like how we bag on how annoying Jar Jar is, but go back and watch the originals and see that C3PO is damn near as annoying and we already saw Lucas' "humor" on full display).
I am not too old to feel like a kid at the movies sometimes, so IMO all these movies have to do is capture a little bit of that magic for me again. TFA did that for me, and it wasn't just the old stuff like seeing the Falcon or X-Wings again. I thought that opening scene was badass with the Kylo stopping the blast, I liked seeing the lightsaber fly across the screen and end up with Rey, stuff like that. Rogue One had those moments for me as well, and I don't remember being bored for a bit during those two. I didn't have that feeling much during this movie and was fighting the urge to check my phone to see how much time was left a couple spots during the movie. My son said he didn't like it as much either which surprised me. I'm glad it lit that spark for people in here and their kids, I am just saying it didn't for me this time around.