The Sheraton in Addis is impressive as you arrive. It is in a quiet area, and we felt very safe. However, it is rather isolated, although you can find taxis to take you any where you want. We checked out other Trip Advisor top rated hotels, and although I didn't love the Sheraton, it was still the best of what we saw.
The rooms are sort of standard Sheraton fare, nothing bad but nothing great. Clean. But I must say I was shocked at the prices. Way more than you would expect to pay in this part of the world. We had our breakfasts at the hotel, which was fine, but the one dinner we had was inedible. It seemed as though the food was days old and had just been reheated. Not good at all. Note that when we were there, at least, they told us there was an Ethiopian law making it ILLEGAL to use skype or other VOIP to make phone calls! Also, there was a sign on the in-room safe recommending that the safe NOT be used, and to store valuables in the main hotel safe.