We took over an IP camera system for an apartment project. They had six buildings and because each building is over 500' from the management office had six modems and six Comcast accounts. Comcast was charging them $55 per building for the internet connection in the building which was just used to send the IP cameras back to the management office. We installed these units and ran aerial coax between the units.

They immediately cut their Comcast bill over $300 a month and close to $4000 a year. They have been rock solid and have had no problems with them.

[Link: amazon.com]