We stayed here for a week and half on work business and were very impressed. The rooms were clean, with mosquito nets and well equipped. It was especially lovely to have a balcony overlooking the Congolese mountains. The grounds and the surrounding area are quiet and there are lots of areas to sit outside for meetings or drinks. The staff were very professional in taking care of us (super friendly and accommodating) and the food was good and varied. The only downside was perhaps the price (especially for bottled water) but you can just go and stock up from a supermarket.
Would recommend for anyone visiting BJM!