First thing that comes up for me is it's a single trigger gun.
Personally, I'm not very fond of single trigger double rifles.
A very important component of 'what makes a double rifle' (in my world) -- the distinction of there being two triggers, two sets of lockwork, two strikers, two barrels...
all under one set of sights and hitting together with the same ammunition.

The 101 isn't 'quite that'
I've had the stocks off 101s in the field, done 'quickie' repairs to the 101's trigger.
That's not what I sign up for with a double rifle.

Stack guns are cool.
The 101 is cheap.
Are you thinking of going with this winchester because they are cheap and plentiful?
If that's the case, look for something with two triggers!

--Tinker