Marginal braking at best, worse if on steel rims and can result in death squeeze prayer in the rain with city traffic.
Aftermarket Kool Stop salmon pads are an improvement. Cost of pads in the U.S. is 1/4 the total cost of your entire bike example. That's comical right there.
The action of this brake design is most primitive but ridiculous charming for any bike produced today. The force pushes up on the rim and not against opposing friction pad.
She's cute, by the way.