I love my smoke units; the more the better, especially steam. Diesels only once in a while. I run most diesels on low setting. You definitely need a good exhaust fan in the train room though.
The other night my wife came down briefly and said "That smells nice" I just about passed out from shock. That was a first. I was running JT's Spring flavor.
I have very few problems with MTH smokers, and when a problem pops up they are easy to service. Lionels seem to be more prone to troubles, but that may be just coincidence on my part.
I am not trying to start any kind of brand war debate. I have just as many of one as the other, and the new 3751 is one of the best Lionel smokers I have seen yet.
Anyway, smoke is in for me.
Rod