I loved him in Dimmu Borgir too, they made so many great songs. Like Progenies of the great apocalypse, Burn in hell, The serpentine offering, The sacrilegious scorn etc.
Normally I'm not into orchestra music, but I really enjoy the symphonic elements in Dimmu's music. Like the Wacken concert they did in 2012 with the full Czech symphony orchestra. Just amazing, would've loved to have been among the audience there.