I have never spent a night in the hotel, but I usually go for services like restaurants, bar and gym. Internet is very reliable.
Service at restaurant is slow, buffet expensive. Food is good in comparison to most of all the other restaurants. In the bakery you can buy the best bread of Bangui. Some waiters are polite and strives to be professional.
Gym: clean and not too crowded. Hot shower available. Staff becomes unkind at 9h00 when they have to close the gym. Not what you should expect from a 4 stars hotel if you paid almost ten euro for one hour.
Women not dressed appropriately sit at the bar or walk around in the evening. This too another weak point..More