We enjoyed our stay at the Lindner Hotel. The location is very good close to shops, restaurants, underground stations and it is easy to walk from there. No car is needed.
The hotel seemed to be clean and well taken care of. If you choose no cleaning during your stay, you will get the minibar contents for free (a couple of juices, colas, beers, water bottles and one chocolate bar).
You need to choose what time you will have breakfast (7, 8, 9 or 10 am), At 9 am it was very crowded and we needed to wait for a table 15 minutes. At 8 am there were empty tables. So better to avoid 9 am breakfast time at weekends/holiday times, if possible.