I was late to the F1 sport and got into it just when Schumacher was coming on to the grid. In looking at the races he did seem aggressive but I am not a real expert at how everyone was racing at that time. Sort of like looking at old pro football games and how some of those hits are no longer allowed.
Not knowing if he raced dirty or just a bit more aggressively I don't think I can speak to his driving however, only based on results, he certainly achieved those. As a person he and Corinna, outside the racing environment, were very cordial and pleasant. I only interacted with them a half a dozen times through a mutual friend and only for 3-4 days at a time. Corinna's laugh and smile would light a room and he always seemed to really happy to be around her. The mutual friends attended his birthday party in Switzerland and said they were the same type of people there as when I met them. That seems pretty consistent outside the F1 environment so, from what I knew of them, they seemed like nice folks. I also dont know the boy but the girl is a pretty good equestrian, probably better than Corinna, and a good person like her mom.