This is a lovely apartment block right in the centre of Rotterdam. You couldn't get more central. The studio apartment we had was beautifully appointed with great equipment levels. there was a lovely balcony and on the 13th floor we had a great view out over Rotterdam. Only small complaint would be that balcony furniture would be a nice addition.
You have to bear in mind that this is not a hotel so there are no hotel type services but as an apartment you get a lot of things you wouldn't get with a hotel so a kitchen, lounge etc.
We would certainly use this again and hope they open up in more cities - I think they are only here and in Maastricht at the moment.