It is all relative. Yes there is some noise. You have to look around. Our gasser is a 2016 Tiffin Allegro 36LA. Compared to our previous coach it is very quiet. Yes, there is some noise. Tiffin put insulation in at the factory, which reduces the noise and heat.My Angel and I hold a normal conversation most of the time. I do not worry about 5-20 minutes of climbing a mountain. Yes. When it hit 4500 RPM, conversation stops or you will be yelling. Not a major issue. I like not having to talk to the ball and chain sometimes. You guessed it. She does not read here.
We are very happy with this MH. Drive some. Don't be hooked on the DP vs gas until you way all costs and options.