Hi, I've been using BTV for quite some time and since the announcement that BTV was supporting the HDHR (QAM) I went ahead and ordered a unit. It arrived within a very reasonable amount of time since I was away on a bunisness trip when I ordered it.
I followed the instructions linked in at the Silicon Dust forum for setting it up with BTV. I was somewhat jet lagged and could not understand the channel remapping so that took me 2 days - working on it for 20 mins each day, when the bulb finally went off it took me 20 minutes or so...

And now I have to say the HDHR works fantasatically!!! I am so happy with it, I think this is the best thing since... well since a long time. Recordings are working reliably, closed captions are working! the commercial skip is working as expected and I could not be happier.
After a week of using it I am ready to pull my analog capture cards since I have stopped using them altogether and this will help reduce the heat build up within my case.
Anyone fancy buying a used PVR-250?
Cheers!