Starfield is fun, but really repetitive once you have gone through the different type of bases that are generated on planets and moons. There are about a dozen different formats, but it gets old if you take the approach of exploring planets nonstop like I did. The actual missions and stories in the game are alright and are somewhat comparable to other Bethesda titles.
Ship combat is interesting, although the controls are a bit awkward. Shipbuilding is similar, with an interface that takes some getting used to.
If I had to rank it among Bethesda's more recent releases, I'd list them as follows:
1. Fallout New Vegas (technically an Obsidian game)
2. Fallout 4
3. Skyrim
4. Starfield
5. Fallout 3
6. Oblivion
7. Fallout 76
It's far better than Fallout 76, but it doesn't quite live up to the classics of New Vegas, Fallout 4, or Skyrim.
In short, they sacrificed detail for volume. The often cited 1,000 planets only have about 100 with actual creatures on them. In a way, this is kind of realistic when thinking about how the conditions for life are within narrow parameters, but it's a bit misleading.
Hopefully, Elder Scrolls 6 (whenever it comes out) will take the opposite approach and focus less on the size of the map or number of locations and focus more on detail and originality per location.