Hotel Unger in Stuttgart

Hotel is ok, need some improvements. However, 5 stars for Otto, the late-night-receptionist-guy, who opened the hotel bar for us and served a lot of good drinks!

I had a misunderstanding, but the people at the reception were very kind about it, which I was pleasantly surprised by and really appreciated, as I have been yelled at for more minor things several times in Germany. Thank you! The room was comfortable enough and the breakfast was great.

Good spacious room. S-Bahn is nearby and Hauptbahnhof is only a few minutes away.

We loved this place!

TL;DR: Great location, clean rooms, comfy beds, great staff, excellent breakfast. Definitely recommended.

On to the details:
The location is unbeatable. It's so close to the central train station, drug stores, loads of restaurants and bakeries, a grocery store... it's perfect.

The staff is exceptionally helpful and thoughtful.

Breakfast (included) was perfect. The buffet has an excellent selection with table service for coffee or tea, and it's a very nice dining room.

The adjacent lounge area is also very comfortable with some really cool stained glass and decor items.

The building is great. I've read some reviews complaining about an "outdated" interior; personally I disagree. Decor is a matter of opinion, and I found it to be understated and perfectly fine.

Our room was very clean and comfortable, and a generous size for the price, so we didn't feel cramped.
The bed was wonderfully comfortable.

The bathroom was fantastic. The heated towel rack was a great bonus and the towels were that perfect fluffy towel type that only hotels seem to be able to get. Excellent quality on all the fittings and the tile work.
In fact, everything in the place was in excellent condition. One may not realize how important that is until you don't have it.

Some reviews complain about the lack of a pool. I don't give a fig that there's no pool. I'm there to see the sights, not a swimming pool.

Minor requests / critiques:
An upgrade of the curtains to true blackout curtains. The super cool motorized blinds and the drapery did an excellent job of keeping the room quite dark, but it's nice to have full blackout when jet lagged.

Some sort of in-room fan would be nice. Some reviewers complained about the HVAC system; I thought this wasn't warranted because our room was VERY comfortable the whole time even with the late August high temps being around 92F (32C). However, some people prefer noticeable air movement / circulation. Just a suggestion, and definitely not a deal breaker IMHO.

Would we stay here again?
Absolutely!

The hotel is in an excellent location, five minutes' walk from the train station. The hotel room is large and clean. The breakfast is very rich and very cost-effective. This business trip happened to coincide with Christmas Eve, and the hotel also gave every guest a Christmas gift package for free!