Dust and heavy-vehicle noise are the trade-offs. Look for estates set at least a few hundred metres off the highway, and confirm the borehole — Syokimau piped water is unreliable and tankers are a monthly cost.
For this audience the single most important specification is borehole water. Nairobi Water rations supply across much of the city, and in dry months whole suburbs go days on tanker deliveries. A working borehole is the difference between water in the taps every morning and a monthly tanker bill that can run to five figures. It is the most quietly important amenity in the Nairobi rental market.