I have hunted the early muzzleloader season several times. There are pros and cons in my mind. I think it depends upon what you want as to whether it is the season for you. I like it, but do not consider it a prime big buck time. I am not doing it this year because if you get that early license you can get no other gun license.
Pros -
1. Beautiful time of the year to be in the woods and enjoy the fall weather.
2. Does and fawns are on feeding patterns, I usually have no trouble seeing lots of good does during this season.
3. Deer are spread out and can be hunted lots of places. ( I think they are more bunched during the late season and they may just be on land that you can't hunt, limiting your opportunities.)
Cons -
1. Usually still a lot of corn standing, spreads the deer out.
2. It has been awful warm three of the last four years during this season. This suppresses deer movement and the enjoyment of the fall weather change.
3. Heavy leaf cover restricts visibility too.
Big bucks can be had though, I know a guy who shot a 184+ inch buck last year during the early season. Tip - hunt freshly harvested corn fields during this season, the deer usually pile into a field that was just opened up. I had one of my most enjoyable hunts several years back when I stalked a bunch of deer in a fresh cut corn field and then shot one at about 8 paces, face to face on the ground. That was probably my best stalk ever, a real thrill.