I have been using a gen-turi for over 4 years (we do a ton of dry camping). I can't recommend it enough! It vents all the exhaust over the coach (if I have it off, we can smell a slight exhaust smell under the coach). In many cases our neighbors thank us and inquire about it
We can also have the windows open that are next to the exhaust pipe and not worry about the carbon monoxide coming in. An added bonus, it reduces the noise coming from the exhaust pipe, so your genny seems even quieter (I have an onan 5.5 that is super quiet).