I got digital cable in the Summer of 2006, upgraded to HD in Janaury 2008, and got a DVR in August. I've been pretty happy with things and, using the assumption that moving the HD listings to a reserved 100 channel block means more channels are in the future (Rogers has CNN, so why not us?) I'm happy with that too. There are things that have been annoying me though:
1. This past summer, most of my HD channels would be very pixelated during the day and other digital channels didn't work either. Out of the three TVs with boxes, the one in the living room worked fine all day (though it usually had bad reception for the "More Movies" package of channels), the one in the basement - the HD set - had limited HD but most of the channels, missing the More Movies set along with other specialty channels like DejaView and Fight Network. TMN et all and MuchMore Music routinely worked fine though. The TV in the computer room received almost no channels, though. My own conclusion was this was somehow temperature related - I don't know how or why, but on days where it was hot, the digital reception was at it's worst. Everything worked late at night when it got cool. Once fall came, I began to get perfect reception again.
2. OnDemand is very spotty. Lately with TMN it's been good - the updates are there, but Cogeco's guide still lists last weeks "New This Week" titles for a day or so as still being new. This is a much better alternative than the "no titles appearing at all" that was happening from time to time. WWE 24/7 has also been very hit or miss for awhile. Cogeco blames WWE, WWE blames cable companies for not understanding the technology, and the viewer is left to wait for someone to figure out what the hell went wrong to the programs can be uploaded to the menu.