I have a pair of the lacrosse alphaburly pro side zips. 1000G of insulation. Got them a year or two ago. they have been GREAT for ice fishing and hunting. they are a touch on the heavy side, but it's fine since I'm fat and don't have to run in them.
My only complaint, which I'm sure is user error, is that the camo has faded quite a bit. I leave them in my truck during the spring and the sun beats down on them, but it has not affected the waterproof side at all.
10/10 would recommend them.