Overall, we liked this place --- a decent location, near the train station and Tivoli (although definitely a transitional neighborhood, so be prepared for some sex shops and loud street drunks). We were there with our two children (9 and 13), and the family room (which is just two adjoining rooms, one of which has a set of bunk beds) was one of the best family room options we experienced in Europe, in terms of space for everyone. We liked that the hotel was more of a boutique option than a boring chain, and we do prefer an eco-friendly approach, but this was ridiculous overkill --- trying much too hard to hit you over the head with an announcement of their green-ness, when in fact they are not doing many of the very basic things that you could do to preserve energy and eliminate waste. For example, I would far prefer to have a comfortable towel over the truly unusable, scratchy miserable ones they provide and just not have it (and all the sheets) laundered every day, thus saving a great deal of detergent and water. The soap was also almost painful on our skin. There was no recycling bin in our room, which would be a really easy environmental commitment to make. A lot of the design features that are meant to evoke this sustainable, support-for-developing-nations ethos are also really annoying, so you find your things dropping into the toilet or getting soaked with bath water, or have a very, very hard time rolling your luggage down the hall because of the hardwood floors covered with unstable third-world rugs. I firmly believe that you can be very environmentally friendly without having to suffer, and this hotel is not doing the cause any favors by making it seem otherwise.
One last thing: We were promised an extra bed for the floor for a young relative who was joining us one night. I confirmed it twice by email in advance of our stay, agreed to pay extra for it, and got a confirmation email from them about it the night before, and still it did not happen. We had to keep the children up very late after an already-late arrival while we waited for it to be brought in. They were very apologetic, and overall I think the service is good, but the mistake did happen despite all of the care taken on my end.