This is one of the cheapest options in Karen. The comfort is limited for the cheapest rooms, in particular in the bathroom. There is a small TV, a desk, a shower (with no curtain, lukewarm water). The bed is okay, but the mosquito net on mine was torn in some places. Bring your own... WiFi was sketchy the first couple of days, very good the rest of the week. I didn't notice any air con, but the temperature was fine in the room, both day and night.
The food is fine, nothing special, breakfast is limited to coffee/tea, juice, fruits, and bread.
The area is gated, guarded, and seemed safe, but it requires a car to go anywhere from the hotel. Luckily, the hotel has contacts to some excellent drivers (ask for Shaddy), and the cost is minimal.
The hotel's strongest point is the service. The team is incredibly helpful, polite and welcoming. A real pleasure.
If you want to be in Karen and can live with minimal comfort, I recommend it. If you prefer more comfort for the same price, you will have to go in another part of Nairobi.