Fantastic stay for a business trip. My only complaint is that my room wasn’t ready when it should have been (3pm) and I was asked to wait until around 4:30pm. Beyond that, I couldn’t fault it. The room was spacious, clean, and nicely designed. The lifts worked quickly. The staff were professional and friendly. Location was good for me, but maybe not so great if you want to spent time in the Mitte, though there is an S Bahn station not far away.