The biggest one is that if you don't fit the Dutch mold, it feels like having an overbearing parent at your back at all times. If you do fit the Dutch mold, it is the greatest country to live in.
Some more negative aspects. There are limits to parking spots per home. There are neighborhoods were you can only have a single car per family. There are no more parking spots. Expecting visitors? Sorry.
The Dutch government prefers people to take public transportation which generally is excellent but they make owning a car expensive and complicated (like parking example above).
You need building licenses for almost any change to your home - outside or inside. You want to create an extra bathroom?Apply for a license. Want to remove a tree from your yard? Well good luck with that.
The Netherlands is one of the most beautifully urban-designed places in the world for sure but it comes at a price. Some people love it and some people do not.