Just finished installing and configuring MoCA. It took me about 2h total.
I left one of the actiontechs as my main router, I had one of these before with fios and never had an issue with NATs so I'm going to trust that. The second router is downstairs and it works BEAUTIFULY!!!! I have two devices downstairs, the HTPC and the bluray player, both work great.
I see no degradation of my internet speed, currently at 30Mbps down, 0.5M up, the reading is the same on the HTPC via MoCA and on the main pc directly connected to the main router.
Now I need to figure out a way to test speed between the PCs but I will do that later. Any advice?
These routers are awesome, they have so many options, Ethernet and broadband via either coax or 100baseT and a host of configuration menus, I will poach one or two more from the net just to have as spares. The rest of the house upstairs I will wire with cat5e. I may be tempted to use more of these for the other rooms, but no, they use quite a bit of power and I would not feel comfortable when a simple cable will do.