bring a pair of slippers with you. The wood floor is an old wood floor. So your feet won't be clean after walking on it. Maybe it is the European way, but I never walk around my house with my street shoes, so it was very hard to get use to.
If you really can't handle some bass at night, you may want to try some where else. The host does provide earplugs, but they can't cut 'bass', so you will still 'feel' the bass from the restaurant downstairs. And they can go all the way until 2am. Not the best place for a light sleeper. However, the convenience of the location is well worth the slight trade off for the noise. Keep in mind that this is not an expensive Airbnb.
If you are a North American/big/old person and have never been to Europe before, watch out for places that has 'stairs'. This place has a bit of stairs (I think this is the top level?). So if you don't like long steep narrow stairs, stick with places that are ground level. But everywhere will be the same if you are on the upper levels, so it is not a 'con' you can escape if you are visiting Europe.