I was getting lockups, reboots, and PSODs. But, they stopped with 207. I even requested a replacement Hopper. But, when the symptoms stopped, I sent it back without using it.
Then, starting last night, the Hopper was dropping audio and stuttering on the video with both live TV and DVR playback. The Joey wouldn't play DVR titles, as well. No amount of rebooting, power cycling, or unplugging/plugging would fix it. So, I've requested another replacement.
This time, I'm swapping it out, even if the symptoms go away.
FWIW, I'm on 209 and I get great signal strength.