There needs to be at least the ability to make your own paint shades as what there is, is limited. I like doing the structured jobs much better than buying and flipping houses as that gets very repetitive and feels so samey.
I like to complete everything and the game does become repetitive and boring as there is not enough Decor and design choices in the base game. However when you start buying and flipping houses a lot of the base game houses seem way too simular to each other with not much unique variety with only a few interesting houses at the upper more expensive end.
I've always liked building and creating in games. This is quite an addictive game, you can lose track of time while playing it.