Superficial scenes with forced and made-up outcomes. Aside from Kylo Ren and Rey, the rest of the characters are insipid and almost useless.
The psychological connection between Kylo Ren and Rey is something that should have been explored further. The quick, straight forward conversion of Ben merely because the spirit of his father appears is difficult to accept.
Unnecessary battles and empty dialogues could have been avoided so to dedicate more time to develop and go deep into other questions (including the Palpatines, Kylo, Darth Vader, to name a few).
Marketing rather than art, liquid rather than solid content, superficiality against deepness.
In all, Disney destroyed the saga with a product that does not nearly match up with the original.