This place is the worst. I mean, it's a Sheraton, so the rooms themselves look okay, as does the…read morelobby. That's about as good as it gets. Went to Berlin for my son to compete for America in the International Dragonboat Races, and the team booked us all here. First off, it's on the outskirts of town, so you need to quickly learn how to navigate the bus/train/tram situation to get around (it was daunting due to the long German street names even for me despite being a native New Yorker and learning some basic German for 6 weeks before going. That being said, you can do it if you use the train phone apps with maps and all day or all week or all month tickets) or use Uber or Bolts (the European Lyft) but any form of taxi is super expensive so be careful.
Back to the hotel. We had numerous friends and family in multiple rooms. In a few the A/C was broken. In some the mini fridge was broken. And did anything get fixed? Nope. Even someone who needed a fridge for medications they had with them could not be accommodated. And when they asked their maintenance man to fix the problems, the answer was no, he can't fix it. Also, the phones were down for at least 3 full days. You couldn't call down to the front desk. Even if the phones were working, you'll be charged even for a local call. We left before the phones were fixed, so who knows how long they were down in the end.
Do yourself a favor. Get something more central. And get something with proper maintenance. I didn't eat there, but drinks are well made but alcohol weak and expensive. The breakfast the team paid for was lame. Go somewhere else. Even my friend who has been living in Berlin for 12 years found the location of our hotel an odd choice since it was so far from everything you will want to do including food, bars, museums, sightseeing, and any type of market.