I realize that this movie wasn't satisfying for a lot of people, but for me it's the best since Empire, and that seems to be the consensus of most of the people I know IRL.
Specifically, I view the subverting of expectations very exciting, and the place they've left the story wide open with possibilities. Think about this-- Episodes 4-7 plus R1 all basically feature the same conflict. Empire/First Order vs Rebels/Resistance. One or the other might have had an upper hand, but it's basically two military forces. Now, there is only one.
Also, regarding the "slow speed chase" aspect-- I have no complaints. Apart from a small band escaping, the First Order won. Since they had the Resistance on the ropes, why risk extending with fighters? They waited them out. It worked. It was the right strategy,
I've already weighed in on how I thought Luke's last stand was brilliant, and underscores the themes of the movie and is consistent with the Jedi ways. And I find Luke's backstory and actions consistent with the OT Luke. I've never consumed the EU material, but based on just the movies, it works.