I love mine. Easy on/off, comfortable, warm, dry, seem to dry fast if they get moist inside from sweat. I bought mine for pheasant hunting but found them great loading my canoe, shore fishing, kids soccer games, football games, ice fishing (with toe warmers). Mine are the field blazers.
I have both the Arctic Pros and the field blazer. Arctic Pros are amazing. Feet never get cold with a pair of wool socks. If your feet sweat a ton then you might want to look at something else because they don’t breath very well. I love the waterproof aspect and they are the warmest pair I’ve owned.
I can’t say about the muck masters, I think they have 5mm of neoprene vs. 8mm for the arctic pros. I know the arctic pros are also fleece lined.
I also have a pair of Arctic Pros that I purchased earlier this year. They are by far the best boots I have ever owned. Previously, I always had trouble keeping my feet warm. Now, I don’t have to worry about it at all. As others said, easy on/easy off, which is nice if your heading out for a load of firewood or to get the paper.
I bought the wetland edition and they are good down to about 33 degrees if you’ll be out all day. Below that I’ve had to go to a traditional pack boot. I’m going to look at the Arctic pros and some lacrosse neoprene boots for ice fishing and winter walleye river trips.
I have both the field boots and the arctic pro and I love them both. Even walking the dog tonight around 0 degrees my feet are fine with a single pair of socks and the field boots. I only wear the arctic boots if I plan to hunt or fish and not moving. They are easy on and off and waterproof so they work great for fishing and hunting. I don’t have any experience with the muck masters though. My field boots are about 5 years old and other than the dog chewing the exterior off one boot they are still great and my wife says I wear them for something about 300 days per year.