This place is the best airbnb I have stayed at. It's location was so easy to get to and the view is AMAZING! I wouldn't want to stay anywhere else in Prague. We visited for new years and it definitely gets loud in the square. For the most part the noise isn't a big deal, the windows do a good job. Super clean and cozy and feels completely safe.
There is also an awesome Italian restaurant right downstairs that I'd visit again. Walking around is so easy and it's central to so much. Easy to tour the square, tower, churchs and stop in for a bathroom break which is convenient.