Tokyo Ghoul:Re is a summarized anime version which turns out badly made, due to overly compressed on the story plot. I personally don't mind summarized anime, as long as the plot makes sense. However for :Re in this case, it was made with numerous unanswered questions to some of the scenes shown in the anime, in turn the story plot appears messy and rather confusing to the viewers. You might enjoyed this anime more without watching the prequel anime Tokyo Ghoul.
But for hardcore fans of Tokyo Ghoul, if you enjoyed the first two seasons, you can continue watching it, if you just like to know the ending. I also read the manga afterwards to find out more on all the unanswered questions from the anime.