The location of the appartement is excellent, close to the city center, river, and train station.
Also the appartement itself was great, it was decorated nicely and it was quite an impressive and large appartement.
There were some troubles with the check-in and it was quite hard to find, also the communication over the phone was not always perfect. However, they were really helpful and especially the communication via Whatsapp was good.
There were some other issues with the gas and boiler, which took us some time. However, I feel like it were a series of unfortunate events, rather than a poor management.
The main disappointment, besides the issues with check-in and the gas, was the fact that it seemed like there were 3 bedrooms with complete beds (since at the pictures of each room, a picture of a complete bed was shown, and the descriptions also suggested this). However, this is not the case; there are 2 bedrooms with 'real' beds, and 1 platform with a sofa bed. This was a bit unexpected, and could be communicated more clearly.
However, all together it was a really nice accomodation and we enjoyed our stay a lot.