They will cap you to 10 mbps if you will push more than 20-30 mbps for at least 1 hours. That is if you go with their regular dedicated server offer however you can add some deditaced bandwidth plan which gives you growth opportunities for a fairly cheap price of quality Level-3 bandwitdh.
They have their uses. If you are just trying to push a lot of bandwidth cheap they're great. If you are looking for a fast and reliable connection they're far from great. If you use them for the right purpose they're good, if not you're not. I would never put paid hosting customers on that network.
we have 8 servers with FDC , 3 servers with EV1 and 3 servers with SM
We`ve been with FDC for 2 years now and I have to say they rule. Last year their network was little shaky but last 10 months were awesome. Our uptime has been over %99.9 constantly - more close to %100.
After they added Level3 bandwidth things became even better , especially our online gaming customers are very happy.
Generally if you`re looking on great deal on bandwidth it doesn`t get much better than FDCservers
I think EV1 has way better network than FDC so if you're looking for good uptime go with them, though if you need cheap bandwidth for little money choose FDC.