I just received six ECB6200 units from Actiontec's online store yesterday, as they came back in stock on Monday and I live in the same city that they shipped from
Installed five of them last night. They had the updated firmware already installed.
Initial results are good to very good. I have a three story townhouse with coax in every room, but arranged in one long daisy chain. Between far ends of the coax run I am seeing 30 MB/s in one direction and 85 MB/s in the other doing file transfers from Windows. From the midpoint of the run, I see 90MB/s in one direction and 110 MB/s in the other (saw 966 Mbit/sec transfer rates in the Task Manager!). I am comparing this to the DirecTV DECA setup I used to have, which topped out at about 90 Mbit/sec.
Still have to see if I can improve the asymmetric data rates at the endpoints, perhaps by putting in better splitters in the daisy chain or seeing if I can remove a couple unused ones in the walls. Worst case, I could split the daisy chain in the middle and put ECB6200s on each half at the midpoint - combining the two isolated MoCA 2.0 networks with a gigabit switch.