I enjoyed him in BS8 up until last issue. I see no reason to defend a murderous psychopath like Warren.I love Tom Lenk (check out his youtube videos, they are hilarious) But I have a love/hate relationship with Andrew. I loved him in season seven, thought he was great. So too in Angel season five. But he irritates me in season 8 - I don't know why.
He was one of my favourite characters in season 7. I loved that he got quite a bit of screen time, he was usually very funny.