The Millers reached the halfway mark of the season following Saturday's surprise 2-1 home defeat by Southend and are sitting in the automatic promotion spots.
The loss against the Shrimpers was their first in nine league games and Moore is pleased with how things have gone so far.
"I think it has been fantastic for us when you consider we have not had a settled four back all season," Moore told Press Association Sport.
"But we haven't done anything yet, there are another 23 tough games to go, with some tricky away trips coming up."
Source: PA