I can't comment on how "good" he is as I'm not a drummer and know next to nothing about drums...but he's got some damn creative drumming at least in my opinion. Especially on Deliverance(BTPISIO especially) He just mixes it up so much the guitars could be playing the same thing for minutes on end and when he differentiates the beat...wow. I think that's what makes the length of many Opeth songs possible is the variety he brings to the sound.
Most drummers play something simple like Bam Bam Bam Bam, Boom Boom Boom Boom, Bam Bam....and so on(oversimplified, yes)
Lopez is all Bam Boom Boom Tink Tink Tink Boom Boom Bam Tink Tink Twang Boom Boom Whakooomba.
Yes. It's late and I'm tired
Most drummers play something simple like Bam Bam Bam Bam, Boom Boom Boom Boom, Bam Bam....and so on(oversimplified, yes)
Lopez is all Bam Boom Boom Tink Tink Tink Boom Boom Bam Tink Tink Twang Boom Boom Whakooomba.
Yes. It's late and I'm tired