We really loved the location, the space layout was great for relaxing, and the hosts left us a super thoughtful welcome basket including a small toy for our toddler.
One downside was the jacuzzi tub did not seem to work, we spent about an hour trying to figure it out but might have missed a trick, and there was not enough hot water to fill the bathtub even halfway before it got cold. Definitely not a deal breaker unless you are set on jacuzzi baths.
The front door to the apartment is also kind of awkward, just an artifact of the old buildings, but might be hard to get into if you have mobility issues.
Finally, the apartment was clean, but the bathroom had a strong mildew smell that you could smell throughout the apartment. We had the fan running 24/7, aired out the apartment every day but it was still noticable. For someone with asthma or strong allergies, this could be a problem.