Lets step back and take a reality check here. We're talking third world mid level small town hotels here. Standards of hygiene, cleanliness and maintenance are relative in such properties. Ethiopian hotels of this calibre are more expensive than their counterparts in, say, India, but the product is similar so don't be misled by the price.
The Adot offers a comfortable bed, clean linen, and a well sized room. As far as i can tell nothing bit me while i was here. There's running hot water and the shower is superb. Service is friendly and polite. Staff are helpful, but beware that service in Ethiopian hotels generally seems inefficient.
On the downside, the rooms are noisy mostly from plumbing gurgles when your neighbour showers or uses the loo. There is a glass window above the door leading to the corridor through which light comes in at night. I fixed the latter problem by putting on a flight eye mask that I always carry. Maintenance levels are not great - stained carpets, and the odd bits falling off give the room a slightly seedy air. Typical of the genre.
Breakfast (included) is basic but serves the purpose. No frills. The coffee is superb - ask for a macchiato, which is more akin to the Spanish cortado, and you can tell the quality of Ethiopian coffee.
I used a local travel agent to book the hotel for me so there were no hiccups with room availability or anything else. My stay was certainly much more comfortable and pleasant than I feared after reading all the reviews on TA.
The hotel is away from the city centre, and a 10 minute walk away from the shared taxi routes, but Addis is not that large and it's not that big a deal. The locale is quiet and safe and there are many other hotels in the vicinity.
To sum up, adequate for the purpose.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.