I stayed here for 2 nights, the Hotel is top end and spot on. The rooms are clean and good bed.
You could not ask for a better location, right in the heart of Berlin. Transport right outside the Hotel, Berlin card for 6 euro lets you use bus,train,tram, u band fantastic value.

Berlin Wall, Brand Gate, Sony Centre short walk. We also visited the Zoo best in Europe, You will enjoy this hotel and location is spot on.

Xmass market right outside the hotel, best in germany hot bratty and cold German beer, cant beat it. I will be going back next year

Rooms are spacious, with well-though desk providing good work space and easy connectivity.

Service was excellent, both at check-in and at check-out.

Great breakfast - wealth of options, though at 30 eur you might want to 'buy half a bakery', if not included in the room price.

Location is perfect for both sight seeing and for business travels.

P.S. try the cocktails at the Catwalk bar downstairs.

As always with Marriott, expect a great hotel in a great location. The staff are friendly, the facilities first class and the rooms spacious and comfortable, especially the beds.

We stayed at the hotel for a long week-end in January. The location was great - very central, just beside the Sony Centre at Potsdamer Platz. The room was very comfortable and a good size for a big-city hotel. For an American hotel chain, I was disappointed at the choice of TV channels - a non-news English channel would have been appreciated.