I think my next smoker will be an electric one so I'm doing some research now. I'm trying to figure out the pros and cons to a Traeger type smoker and an MES type smoker. Does anyone who has the 40 find that the window is useless after a while. It seems like the smoke would eventually color it to the point that you can't see through it. Also, If you could share some insight on why one would be better than the other, it would be very helpful.