We spent there just one night after getting to Mombasa in March. You can spent there one night or two but I wouldn’t recommend it for a longer stay.
The room is simple, not too big, with bed, wardrobe and bathroom. The bed was ok, big and comfortable.
The place is not very clean, and the bathroom definitely needs renovation. Our toilet broke twice during one night and started to flood the bathroom. The water pressure in the shower is really pour.
The staff is nice and very helpful. They came immediately when they heard the water leak. They helped us with everything they could, even preparing breakfast for us at 4.30 am, in total darkness with no electricity (there was a blackout in Mombasa in the morning).
So if you just need a cheap place to get some sleep you can take it but not if you need more.