This boot has a very wide toe and I have a very wide foot. No problem with my foot being squeezed which is the case with many boots and shoes.
I had read many reviews about the boot being not true to size and generally 1/2 to as much as  1 1/2 sizes too small for many reviewers.
Typically, I wear a 10 1/2 or 11 shoe. I thought it would be prudent to get a size 12 to make sure I have enough room.
The room is very abundant for me in the size 12. I cinched up the boots as much as possible with my icebreaker socks and my feet are still a bit loose. I would say that my foot would have needed an 11 1/2, but only whole sizes are available. I think I will want to double up my socks or get some special thicker socks for when I am snowshoeing.
For regular day to day use, the size is no bigger than my size 11 Kamiks. They were also a bit loose fitting.

I have only been wearing these around the house for an hour or so to see how they feel. They are really comfortable so far. My heel is especially comfortable. I have the laces cinched up as much as I could initially, but I think I may want to gradually do some more adjustments to the laces.

Interesting thing about these shoes which I bought at Backcountry is that although they look like everyone elses Baffin Snosport, they are slightly different and have what seems to be a heel stabilizer of sorts. I'm not sure if this model may be an older version or what. I don't mind a bit since they look fine and function should largely be the same.

Minor problems I could see happening:
1. Until they are broken in, my ankles might rub a bit. Thicker socks will probably help a bit.

2. There is very little arch support. I am used to none in my Kamiks, so if this becomes an issue I may get some sort of better fitting insert. The current inserts are generally comfortable especially in the heel area.

3. Not sure about the lacing system. I worry about it loosening and slipping. It is hard to cinch it as much as regular laces so the tops of the boot feel looser than I would like. I will likely figure out a solution to all of my lacing worries over time.

I bought these shoes mainly as a replacement for my Kamiks that blew out every seam up front and the rubber split to the sole letting in slushy water. They were 11 years old but this is inconvenient when snow is on the ground and we seem to be getting more of the lovely crystals ever few days. My Kamiks were -40 boots and the Snosports are only -4, but I don't intend to make these my only winter boots. I will use these mainly for snow shoeing and light duty during thaws. They should fit the bill better than my Kamiks for snow shoeing and I expect my feet will not sweat or get too cold. So far I have no complaints with the overall quality of the build. I hope to have them 10 years since they won't be my primary winter boot. We shall see. I am not happy about the shift of production to China and searched widely for any top notch boots made in the USA or Canada. Seems there are none anymore. Boo.
-------------------
UPDATE 1:
The little toggle clamp for the laces does not hold at all on either boot. Big thumbs down on the shoddy drawstring clamp.
I can get the laces nicely tight so the boots are quite secure on my feet, but the clamp on the laces doesn't hold even slightly and the boots loosen up. I can't understand why this should ever be so. Wouldn't someone check this out being that they are on boots that are largely intended for winter sports with lots of movement?
My wife has these same type of drawstring clamps on her running shoes and the laces stay nice and tight once the clamp is set. There is no way for me to tighten these boots and get the tightness to remain. I will have to replace the flimsy clasps with something better. I think I will write to Baffin first since I am not in a rush.

I took the boots out after midnight last night in a blizzard. Temps were running about 13 degrees with gusts up to 20 mph. I was really surprised that after a couple hours, my feet were completely dry and cozy even though I wasn't doing very much except walking around. I was expecting them to feel different than my -40 degree boots, but if anything they were actually warmer. My feet were very comfortable even in my lightweight socks.
--------------------
Update 2:
I wore these on a 10.8 mile snowshoe adventure through mostly deep powder on uncut trail. These boots performed very well indeed. My feet were dry, comfortable, warm and after the nearly 11 miles my feet had almost none of the usual wear I would expect. I am surprised how warm these are in general. They say -4... but they are more like my -40 Kamiks.
The laces did slip and I had to tighten them up a lot. Someone suggested cutting the cinch lock off and using the laces like regular laced boots. I'm not certain this would work for what I want.
These boots can be cinched up for physical activity.... or as I find I normally use them... I slip them on my feet very easily and they stay on very very well. I leave them un-cinched.
There was a bit of slipping of my foot in the boot when the laces began to slide a bit on my snowshoe adventure. I still need to get a better cinch lock put on... one that actually locks.