Yes,im useing it now.I have a pci hpna card that i use to share a broadband(cable modem) internet connection.Works flawlessly and at 10mbps it has plenty of bandwidth to share my 1.5 mbps cable connection with no bottlenecks.Granted 10mps is a bit slow for transferring files between computers but not so slow that it is really a problem ,at least in my little network.My computers are about 250 ft apart useing ordinary 2 conductor phone wire.Installation was plug and play all the way.The only problem I had was I made the mistake of following the instructions and trying to use the bundled software(sygate) to share the modem connection.I very strongly recommend avoiding the grief and just use windows in house networking components.Ihave used it with win95,98se,Millenium Edition,2000,and XP Pro with absolutely no problems.Drivers are even included in Millenium Edition and XP Pro.I have used it sucessfully on everything from a 486 at 100mhz to a pentium 3 at 800.the cards i am useing have a broadcom bcm42 chip,sold as a Linksys HPN200.A neat feature that is often overlooked is the ability to \"daisey chain\" the phoneline connections thus avoiding the need for a network hub.The network does not affect the telephone service in any way,infact does not require telephone service to work.I have nothing to gain from endorsing the product and highly recommend it for simple home networking without the hassle associated with routers,hubs,and cat 5 cabling.I havent tried it yet but i understand that there is also a usb version available.I must stress the fact that you should not use any third party networking software that may come with the cards.I dont know why they insist that it be used but it is not necessary and Windows of all flavors does a much better job.