At best it is an average ending to a disappointing and chaotic trilogy and a desperate attempt to fix what was ruined by the 8th. TRoS repeats the pattern of previous two though - it answers its questions while posing another (unanswered ones), uses original cast more as marketing tools than 'childhood legends', completely disregards prequel material, seems to be more rushed than AoTC and TSL put together and its plot is so unoriginal it is actually funny. Music is cool, so are visuals but there is and was no plan, I have no idea what was disney story team thinking but clearly neither do they. It has to be said though that it verges on impossible to bind all the plot lines of the previous 8 movies and at the same time make a good 2 h movie that has its own story and action.
In the end from a trilogy that had limitless potential we got ANH remake, some wannabe-edgy movie that has no plot, shits on things established by the predecessors and is the longest one with most filler material while those nearly 3 hrs could be better spent story and character-wise and the grand finale that is just an okay adventure movie that turns into bombastic epic battle packed with easter eggs with not much feeling nor explanation or sense behind it. It could have turned out better had one director ran all three movies - in terms of the story, style and vision. But it could've been worse I guess.