Absolutely enjoyed staying at this place. The room was very comfortable and cosy. It is worth it to pay the room rate that includes breakfast. For the 6 days I was there, breakfast always included fried eggs, some kind of bacon, cereal, yogurt, fruit and toast. The variety included various Chinese foods like mantou (馒头), congee (粥),buns with meat (包子), fried rice and various other breads. You can also order dumplings, wonton and noodles. Consider it a B & B place.
The staff was very helpful and polite, including the housekeepers. The front desk staff helped us call taxis, which an extra help since we did not have local phones or local Uber accounts.The small size makes it personable. We communicated with the staff in Chinese so I'm not sure how their English is. Prior written communication with them was in English and I received prompt and clear responses.
As others have noted, the place is located in an alley and can be hard to find if the taxis do not know where it is or do not use GPS. It is about a 10 minute walk (800+ meters) to the subway stop. On the same street to the subway, Xinjiekoudajie (新街口大街), there are plenty of places to eat.
In reading the reviews before going, it was hard to find anything negative and I concur. It is old China with comfort and personality. They are serious about keeping it as a no smoking place (not just put signs up and allow them to be ignored). It will be my first choice to stay in Beijing whenever I go back.