Yes. The downside is the wealth tax, and it can also be very difficult to socially integrate into a country where English is not the first language. (I can learn Dutch of course, but it would take many years.)
My wife is American. Judging by her progress learning Dutch well enough to be able to speak would take 6 months.
It will take her years because she does duolingo for 5 minutes every day and speaks a bit of Dutch with me.
But given by how her progress goes, I'd say it'd take 6 months if you go intensely about it.
Dutch is close to English in vocab.
And by the wealth tax you mean box 3? I don't know how other countries do it but as we currently have it, I find this way more chill than the US. You don't need to log your trades, you don't need to care about capital gains. You'll roughly pay 1% about your net income.
If you want to avoid that a bit: buy art in your house that's stable (if I recall correctly, I'm not a laywer) and your house is your primary residence. So any money that you put into that doesn't get taxed.
We'll change soon to a capital gains system probably anyway, a few years tops, so this point is probably moot.
Again, I'm not a laywer or financial advisor. I sometimes read up on these things, but I'm not razor sharp on it.
Most of the tax begins at $80k+ and then $110k+ yearly income but not so much wealth from my understanding.
PS; The Dutch government may reverse the negative expat changes, especially regarding the special status for capital gains from outside the country in the coming years. And check out Germany. They may also shortly set up a scheme.