i would not call the C/L quite small. For the size of the hotel, it is quite large and although I would not pay a 50 Euros upgrade for the opportunity, if one were looking to use it to obtain both breakfast and dinner, one could easily achieve this from the lounge.
First, the particulars. The lounge is open 7 days a week and it has free wireless and 3 computer terminals in an adjoining room.
Second, the lounge has extended hours unlike any other lounge that I have encountered:
Breakfast: 6:00 AM - 11.00 AM
"Appetizers:" 5:00 PM - 10:00 PM
Wine and Cheese 10:00 PM - 12:00 AM
Breakfast always consisted of bacon and sausage links in one warming pan and scrambled eggs and hard boiled eggs in the other. As I am not a fan of either, I limited myself to the refrigerated cabinet that had lox in small storage jars as well as various breakfast meats such as proscuitto, spicy salami, etc., swiss cheese, 4 types of yogurt, etc.
In addition, there were the normal cold offerings of cereal, muesli, wonderful breads and cheeses such as brie and gouda. Apple, Orange and my favoite multi vitamin juices were on offer as well as coffee types dispensed from an automatic machine and various teas.
Should you have wanted, Paulaner Hefe Weissen was also available, as was Diet Pepsi, Pepsi, and other soft drinks.
After breakfast, you could have availed yourself of the drinks above, as well as soft pretzels, and some other snacks.
"Appetizers" is placed in quotes because one could easily make a meal of what is offered.
There is always a vegeterian hot dish -- usually some form of pasta. There was pasta with pesto sauce one night, tomato sauce another, butter/garlic sauce a third, etc.
In addition, there are two non-veg hot dishes, one seemed always to be some form of fried dish and the other was always some form of a brochette. Although I was told that chicken and beef usually alternated, the seven nights I was there, beef was skewred six of seven times, the remaing time it was salmon. I am not really much of a beef eater, but it was quite tasty. As for the fried foods, once it was shrimps in a small crepe like wrapper, another it was spring rolls, a third it was cheese with red pepper in a bread crumb covering, etc.
As for the refrigerated dishes, there were lox, green salads, various small salads with meat in small containers, such as with chicken, beef, or small shrimp (crevettes), etc. In addition, on the top shelf there were desserts, but fortunately, not having much of a sweet tooth, I avoided these so could not tell much.
In addition, there were those wonderful breads and cheeses that presumably were left out past 10 PM -- I did not make it up to the lounge very often after that time period, but when I did it was just to grab some sparkling water.
Further, there was prossecco, and mix your own cocktails, as well as the Franzikaner Hefeweisen -- which has got to be the best bottled wheat beer that I had ever had.
As for the room, they are somewhat compact, but not really small and they are well appointed in a Marriott sort of way. They do have the old tube TVs, but I expect that some time in the near future they will get flat screen TVs because I had one in my room.
The location can not be beat in my opinion because so many lines cross the Potsdamer Platz, that you can get most anywhwere in Berlin via the U or S Bahn stations located there.
Furthermore, with the Reichstag, the Brandenburg Gate, the Memorial to the Murdered Jews and Documentation Center, the Memorial to the Homosexuals who were repressed and killed under the Nazi regime (and the soon to be built memorial for the Roma and Sinti community who likewise suffered a similar fate under the Nazis to be built nearby), the Topography of Terror documentation center and memorial wall which stands on the loaction where the infamous HQ of the SS and Gestapo were located, as well as Check Point Charlie, all within walking distance of the hotel, what's not to like about the location?
Finally, the staff at the property are first rate, as is its restaurant, which although expensive, serves excellent steaks and chops. Moreover, the current EEO's permits one to use the B1G1 Dinner Entree for this restaurant.
I could not think of a better place to spend time in Berlin, and for my next 7 day trip to the German capital -- as I only scratched the surface of this wonderful and vibrant city -- my choice again will be the Marriott!
Final note -- the company that owns/runs this property also owns/runs the nearby Ritz Carlton, as well as the (apparently well thought of) downtown C/Y hotel. This organization, however, has no affiliation with the C/Y in Teltow.
Final Final note -- my points posted within 1 day of checkout!