I'm rating it 7 just because it was fun to watch the movie for the first hour or so. Otherwise I'd go for 5-6.
This is my humble opinion only, as it over and over again proves my theory about the movies nowadays... The film industry today depends on remakes, prequels and sequels, comic adaptations and mindless creations made to make money, depending on marketing and special effects.
The new Star Wars is unfortunately the part of that.
It looks great, special effects and atmosphere are great. Specially atmosphere, gives you a real Star Wars feeling.
On the other hand story is not that bad, but something chewed up hundreds of times before and predictable. Acting is OK, but OK only. Casting...oh my...Kylo Ren? I don't have anything against anyone, but Adam Driver would better suit Harry Potter movie with his appearance.
Way how the characters are elaborated is not on a level that class such as Star Wars should have. Kylo Ren again? I mean Sith Lord who will have a nervous breakdown and destroy half of the room just because something went wrong? He should be calm and cool no matter what if you ask me. Sacrificing his "sith" just to make someone laugh?
The #1 bad guy is named Snoke? Maybe Harry Potter movie set runaway again?
And I just can't believe that episode 1 and 2 have 6.something rating while this has almost 9?? Marketing...
But again, if you are looking for fun packed with special effects and bunch of action... this will indeed be a good pick to spend an evening with!