I really thought about this, I voted 7, but it might be an 8. These are so hard to judge, but part of it was I was so stoked for this and just feel a little underwhelmed compared to what I was expecting.
One thing I do like is that it appears that Luke is no Yoda in this. I love that last line, it's clear that there's no Jedi Council, there's no hope. I think there's more recognition in Luke for his failings where with Yoda there was none, albeit in fairness there were no prequels at the time to show us how Yoda played a part in the failing of Anakin.
I need to watch it some more, but I think I wil probably like the regular trailer when it comes out hopefully around the time of Spider-man Homecoming, or with whatever big films Disney has planned for September time frame.