Has anyone heard anything about Cogent Communications (www.cogentco.com) or done business with them?

Their product is a dedicated 100Mbps of transit for $1000/month. 

Quick rundown:
        Metropolitan OC-48 rings, with no more than (24) 100Mbit customers on each.
        Nationwide OC-192 rings between the MAN rings with extensive private peering.

Any feedback would be appreciated.

thanks
bill
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William J. Petrisko (WP5)                         Network Engineering
bill@axient.com                                 Axient Communications