Mueller Failed, Completely
If the point of Mueller’s testimony was to prove that Trump is an unethical asshole, great. I’m sure you found his testimony to be worth it.
However, that’s not what Mueller was appointed Special Counsel to do an “investigation” on. He was appointed to investigate Russian GOVERNMENT interference in the 2016 election. (Kindly note that this should have completely eliminated anything that occurred AFTER the election, while his report is nearly 1/4 refers to events after the election was over.)