Why make yourself depended of what critics say? Did you personally enjoy the movie, that is the only question that is important.
Rogue One was amazing to me - a war movie set in the Star Wars universe with a genious seamless bridge to A New Hope.
They included old footage? Awesome, that small snippets of the Gold/Red Leader footage alone during the space battle made my heart skip a beat.
TFA: I dont mind the similarities to ANH scenes, I see it as an foundation to bring in old and new fans for the next movies to come.
If Episode8 is a reshoot of Empire Strikes Back then I will be pissed.