Prompt, friendly communication from the owners and a smart, clean but very small app't in Central Utrecht. Don't be fooled, this really will feel a squeeze if you need much space - this is definitely for a single traveler or very close couples only.
Given major construction around the area, which of course is not the owners fault, it was also difficult to get to by car and the noise starts right outside at 7.00 am. You won't be getting any sleep after then while these works are going on.
Being there on business with a colleague, the above 2 things made the whole experience more demanding than was welcome.
In fairness, the owners offer 50% off the 1st night of any subsequent stay, but it would have been fairer to make guests aware of the sheer scale of the works beforehand and make the offer for that stay.
I'll need to repeat the trip alone in 12m, but would only book again if the construction is finished, though sadly this looked unlikely. Also, not being able to pay by CC is hassle, but may not be for all.
We stayed Mon-Thursday so the noise of major construction might not be an issue at weekends.
Oh, and the nearest restaurant (Kueken?) is a very short walk away and really excellent.