I am using the HADDOCK docking server. I am attempting to dock a protein to some dsDNA. All the energy values stack up, but I'm having trouble interpreting the more specific scores. My HADDOCK score is -90±2, the cluster size is 126. Are these within the "normal" range of scores?

It looks similar to the example score, but there is very little information on interpretation of these numbers, and the manual doesn't help with qualitative analysis, but only deals with extracting the values. It doesn't help me interpret a "good" score.