I think the hotel is quite new and certain areas are not quite finished such as the roof terrace bar, but the general feeling is of good quality. It seems as though it is in an old office building which I think is a great idea.
We had multiple cancelled flights and ended up staying two nights longer than we had originally planned and the staff were very helpful and understanding with the rebookings and honoured lower prices even though we were staying on more expensive weekend nights.
They are quite keen for you to check in on an app which doesn't seem very customer friendly but perhaps if you already have the Selina app it could be quicker.
Great location and definitely worth a try.