I am a big fan of his music with dt. I hate his personality. According to MP, he was very uptight, no fun to work with, frustrating, and he has his ways of working which aren't very conducive to collaboration. Also, didn't they invite him to wdadru, but he refused? And he just pretty much abandoned the band for himself. When you are in a band, it is more than just making music. It is a family, and a promise that you will stay with the band, and devote your life to the band. That shouldn't be broken for what you want to do.
And I am not bashing him, any "insults" came directly from and interview with mp on blabbermouth. My only opinion is that I don't like kevin's personality.