I have two 13 X 27 alaknaks and have the vestibule for both ends.
http://www.monstermuleys.info/photos/user_photos_2016/17687image.jpeg
One big thing that no one mentions is that it has a floor and it keeps mice out. It comes with stove jacks. It doesn't get moldy and start stinking. It will definite have condensation if you use any propane devices inside it.
It probably isn't as warm as canvas but still warm enough. The material is pretty tough, surprisingly so. Set up is quick and easy, takes me a half hour and I can do it alone though I prefer not to. The poles are proprietary and you need them, whereas with canvas you can use poles in the woods, which would be better if you are packing in backcountry etc. I can't see how it could ever be packed on a horse. The pole bag is five foot long and about fifty pounds. The tent itself packs down to about four foot and 40 pounds and is easy to get back in its bag, not like other tents.
You ask about November, not sure what part of the country you are talking but if you mean snow...you better be careful with it. Some snow will slide off if the wind is blowing but if it's a heavy wet dump wth no wind..say 8 inches or more..you run the risk of it collapsing, don't ask how I know. However the tent is so strong the poles will bend before it rips. But not a worry if someone stays at camp. It will stay warm if you keep feeding the fire but it's safe to say it's not as warm as canvas in the mornings. If you plan on having a wood stove in it definetly get the roof protector..and definitely snap it on before standing the tent up, from experience again. lol
All around it's a great modern tent with a lot less hassle than canvas when it comes to moisture. No need for sprays, wax ,etc. The vestibule is overpriced, up to you on that, but it's nice to put a little bench in there to put boots on in the morning. No boots in my tents ever. But if you don't get the vestibule on just perfect it will leak when it rains....right over the door where your boots are likely to be! That makes a shitty morning.
Overall I cannot say it's better or worse than canvas, but the alaknaks is a hellova tent and clients like being in it. It doesn't get hot in the daytime, has big vents on the roof and big windows. I won't ever be buying canvas again. Did you see the video where the couple moved into one?