Cogent?

I seem to remember reading some stuff about Cogent on NANOG a short while back, but I can't find it in cctec's archive. So my question is this: Cogent is advertising 100M for $1000 a month by bringing their own fiber into facilities. Does anyone have experience with Cogent? Can anyone tell me things like do they meet their install deadlines, is there anything peculiar about their network, etc. Thanks, Tim