Hitron CODA56 experiences?

After 3 frustrating days trying to get an Arris S33 modem (the Comcast-recommended model) to work I've had to give up and return it, going back to the Comcast modem.

With the Comcast modem I was getting 910/240, but with the Arris I only got 720/5 (yes, only 5 Mbps upload).  They even sent a tech out to check signal levels and everything was fine.

So now I'm looking at the Hitron CODA56 (also on the Comcast-recommended list) and am curious if anybody has experience with this modem and is getting the advertised speeds.