The folks at Station Stops have reviewed the Netgear MCAB1001 MoCA Coax-Ethernet Adapter Kit. Overall, it seems to have gotten a positive review.
If you want to plug multiple devices on the remote end (as I did – it is sitting behind my TV and needs to feed my game consoles, TiVo, remote Wifi AP and internet-connected TV) – you just need to plug the remote end into a cheap router (as the remote device itself only exposes a single IP address).
Previously, the only way to accomplish this type of thing without wifi or ethernet was to use Powerline ethernet, which is basically an identical solution except that it uses your AC wiring. The problem with Powerline is that the real throughput speed can vary widely, and even in the best case maybe tops out at 45 Mbps – half that of the Coax product.
If you want to read the full post, check out Station Stops’s review.