I didn't vote because I fall between these 2 choices:
Works to an extent but is unwatchable.
I have 10 channels over the air at my location
It doesn't work perfectly because it stutters sometimes on full 1080i channels that don't have subchannels stealing bits from the main channel.
CBS in my location is the only HD channel that utilizes the full bitrate of HD on one channel.
There are 3 others that use 1080i, but also have subchannels sharing the bitrates.
Two of these channels work pretty well on a clear day with no wind.
PBS shares its bitrate with 2 subs and the main one is 1080i.
The main PBS HD channel plays with no probs.
ABC is 720p, so it always plays well, unless there is a thunderstorm occurring.
All subs play perfectly, unless there is a storm, since they are 480i
FOX is far away and only comes in with my rooftop antenna.
The Dell antenna picks up the other 9 channels most of the time.