We stayed during the second week of January. We arrived too early to check in but were able to leave our bags in a secure room and get straight out into the city. We had taken the train from the airport to the zoological gardens stop and it was an easy 15 min walk from there( turn left outside the station past the zoo)
We then set off to walk into central Berlin. I have to be honest it was the only time we did that walk . While I'm sure walking through tier garten is lovely in the warmer months it is a bit of a slog in the winter. It took 45 mins to the Brandenburg gate at a steady pace. The rest of the main sights apart from the reichstag are all a good half an hour further on.
When we returned to the hotel the check in was faultless and we were taken to a lovely 10th floor room with a view over Berlin. The room was certainly compact but contained everything you need. The bathroom was spotless and all the fixtures and fittings were lovely. The only issue was that it was a non smoking room and we discovered that smoking rooms were only available on the older first floor rooms. This was not a problem for us but it could be for smokers. There's no difference in room sizes just that the upper floor rooms are recently refurbished.
While agreeing with previous reviews about lack of space I do feel that it wasn't an issue for us at all. Our bags slotted into the wardrobe space fine.
The room was toasty and warm, there were tea and coffee making facilities and the shower was very good. Breakfast at the hotel was lovely, in fact it was excellent. There were coffee pots on every table so no going up and down to a machine, and every option of food that you could possibly want. We ate so heartily each morning that lunch just wasn't needed!
Towels and bedding were spotless and we could find no fault there. The staff also were really helpful, when we had a problem with our kettle I went down and a very nice guy called Sebastian sorted it out immediately. Every member of staff we spoke to was very efficient but Sebastian stood out as over and above for his service level.
We would recommend this hotel providing you are happy to walk or use the train. The area around the hotel is pleasant with shops and restaurants all close by. It's very handy for ku, damn and tiergarten but out of the way for the eastern part of the city .
The trains though are super efficient and run frequently and taxis are cheap and plentiful. If like us you do a lot of budget city breaks then I don't think you can go wrong with this comfy hotel , just bring your comfy shoes!

Stayed here for two nights during stay in Berlin just a few min walk from the tubes and loads of shops will be going back.

the hotel is in a very good location, very close to the 100 bus line, a minuts walk of the KaDaWe and the Kudamm.
we visited at Christmas time and we got chocolate and best wishes from the hotel manager.
The hotel staff were polite and attentive and helped with any problem that we had.
the rooms were nice (we were 5 people in 2 rooms) and clean, but there was no ventilation in the bathroom which required us to leave the door open after use, and the double room was pretty small...
the hotel has a bar on it's 11th floor and there's a great view throw the big windows.

The only problem was the quality of the breakfast on our last day at the hotel, which was not good, but when we Complained the staff immediately addressed the problems.

we'll return..

We took a cheap upgrade from our cheapest of cheap rooms of 15 euros a night when we arrived and were thrilled with our amazing room. Whilst not central the hotel was a 2minute walk from Wittenburg Platz station which made it a good combination of convenient but quiet at night.

If you stay here tho, we would recommend getting your breakfast at the icecream parlor restaurant on the corner by the station. . . they do an amazing range of traditional German breakfasts and its really lovely!

I would recommend this hotel but if getting the train go to Witternburg Platz and go up to the right past the Kaisers shop and then right at the main road and find it from there.