I'm American and concur with this. Aside from some slightly accented tweaks here and there, the Dutch speak a remarkably clear and rhotic English that feels quite comfortable to listen to.

It's odd because Dutch itself, being a Germanic language, has a lot of pronunciation commonality with the most conservative of all English accents, Scottish. You can hear it in this video, where a sentence composed of common Germanic words is spoken in every Germanic language:

https://www.youtube.com/watch?v=ryVG5LHRMJ4