I stayed here for one night, and I'm happy I chose an experience rather than just somewhere to sleep! Being in your own tiny house, in the middle of everything feels a little magical. I think it is a curiosity even for locals, I got a few questions and surprised looks when at the door.
You are right by the traffic and passersby, but I was never bothered by it (and from what I've learned of Amsterdamians, they won't stare through your windows :)), and I think this is on a quiet street in comparison to others.
The bridge opened twice while I was there, such a strange thing to be in it :)
I really liked how the place is renovated and decorated, it felt respectful of the history yet stylish. The bed and all of its pillows were great. You'll find most things you need for a few days stay, such as a mini fridge, cutlery etc.
Staying there at end of January, it was cold, especially the floors. But, a hot shower, AC and slippers from the cupboard sorted that out!
I do recommend staying in any of the bridge houses when in Amsterdam!