I'm pretty sure you don't get the short wheelbase 204bhp model in the US/Canada - I'm guessing you all have 19" wheels as standard - so you all have the big brakes.
This model in Europe has a maximum vehicle weight including loaded trailer of 4000kg (8800lbs) - the brakes are not confidence inspiring.
I've had one real emergency braking situation, only half loaded so about 2700kg (6000lbs) - on the flat at 130kmh (80mph) - someone pulled from the slip road to lane 3 without looking at 50kmh (30mph). I can confirm the smaller brakes work very well without locking up - but this is an extreme situation where you stamp on the brakes with all your might.
In my day to day driving - which is up and down the mountains - half loaded, there have been many times when heavy braking has been needed, and it is not 'comfortable' braking, you feel that excessive force is needed and there is little feedback.
My previous VW diesel van of about the same size, did not have this feeling, it was on 16" wheels with even smaller brakes (and narrower tyres).
The Buzz is heavy - certainly wouldn't be advising anyone to the smaller brakes on the LWB heavy model, or the AWD more powerful models.