Thanks for playing!
I hadn't heard of Sagrada, but can see the similarities for sure! Although it looks like Sagrada uses the opposite matching rule to my game (i.e. adjacent dice must not share a color / value) - that's an interesting space to explore.
I haven't heard a lot of feedback regarding players having difficulty learning the game, but I noticed many players have an "ah ha" moment when they realise they have to satisfy the rule for all surrounding dice. That tends to be a moment where players start to play more carefully. That's more a case of learning strategy than the rules though. :)