I can highly recommend this hotel for the more cost concious traveller. For the price, this hotel is very good. Rooms are a bit basic, but they were clean, comfortable and had everything you would expect of a modern hotel room. The staff were friendly, helpful and spoke very good English. Breakfast was quite good with lots of options and convenient times. Location was excellent for visiting most central sites, just a minute walk away from the Alexanderplatz U-Bahn station.

Stayed here over Christmas. When I arrived the man at concierge was very helpful and patient speaking to a customer over the phone trying to lead him back to the hotel. It was a little hard to find the hotel as its hidden away, but once you find it you could never lose your way.
The rooms were simple, bedsheets were clean & blankets warm. TV was old but the only english channels were CNN and BBC - we ended up watching The Polar Express in German. haha
The train also comes directly from Schoenfield airport which was great.
Breakfast at All Seasons was plain, crossiants, cured meats, cheese, cereal. Couldn't complain although there was no hot food. Hot Chocolate machine was good!
Alexanderplatz is a convenient place to stay, the station will take you to the main tourist locations.
I think All Seasons was great! with very good wifi in the rooms!

Might have paid for Park Radisson nearby instead cos the price difference wasn't that much.
There is a club nearby, could vaguely hear the thumping of music at 8am, which i thought was a bit weird... but it didn't bother me too much. I slept like a baby after all the walking I did.

Clean room, excellent location. Shower and details in the room felt cheap. The door handle to the bathroom was loose and fell off. The bed was too hard, but I guess that´s a matter of taste. Otherwise a good experience.

The location is really super for exploring Berlin. We had a compact room which provided us with all the necessities. The breakfast buffet was delicious, with fresh fruits, yoghurts and a selection of bread with ham, cheese, etc.