If you built the original no real need for this one. There was only 2 places with new build techniques that were neat. They did change how you build the turrets but if you have built the Saturn V, which came out a year after the original castle, they used the exact same build which is fine but the same exact color elements although not visible they don’t blend in with this build. Those pieces are available in this color scheme so that seemed lazy to me. It was surprisingly missing a 1X4 Sand Blue brick that I had to build around until the replacement came, there was an extra gold dish piece that is used in the set but not in that bag, never had that happen before.
I like the sand blue castle build but overall prefer the original visually.