We were actually the only guests midweek in August but lake Kivu is a weekend hangout, I think, so I am sure it was different after we left! The service is a bit slow, not unusual in Africa, but the food is good and the staff really friendly and helpful. The pool is overflown by hunting kites and the garden full of colourful small birds and the odd sea eagle. The lake is gorgeous - check for the fruit bats in the palms nearby - and the locals friendly. Spacious rooms are not full of character but it's definitely worth the $110 per night.
Beach Road, Gisenyi, Rwanda
Google map: bit.ly/oQixqW