Do they kinda act like little paddles? I haven't ran chains yet, but want to play with them.
They can act like little paddles if you're in deep heavy snow, if you're on like slippery melting snow as the sun comes out you can't even drive up a 5% slope with mud tires, if you're at a stop your tires will just spin. with chains you just go like you're on pavement.
One thing I noticed is that the chains tear up the terrain more so if you spin your tires you'll dig in (to the snow/sand/etc) really fast until you're sitting on your frame, keep that in mind and it's actually really hard to get stuck, especially if you're on an incline where gravity will just allow you to get unstuck by driving downhill.
You have to try them sometimes, it's seriously fun. If you buy some for your jeep get the V-bar ones because they are much more aggressive and wear slower.