I have one.. tho I haven't spent very much time with it, it works pretty well. One flaw, it won't read the ETT's, which are the program descriptions. It read the EIT's, or program titles, just fine. Set up was easy and inuitive, with a fairly qucik scan.
It's OSD is very similiar to the motorola HDT100/101, which I also believe were made by Zinwell.
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Nor my wife for that matter!