The place has been amazing! The truth is (as a lot of the other visitors mentioned) that the pictures of the place do not make justice! the building is newly renovated, very spacios and clean, and actually very secure. The concierge is available 24/7 and there are very helpful.
In the first night we had an issue with the shower drain, we informed the concierge and it has been taken care of right away.
The place is extremely close to the center!!!! It is literally 5-10 min by walking to the old town and to Charles bridge. Amazing!