We love Voom! We have enjoyed VaVaVoom since May.
#1 - Lots and lots of HD. Beautiful pictures, which are better for everything, but particularly travelogs, nature, scenery, art galleries, extreme sports, etc. We hardly ever watch SD anymore, except for news sometimes. Combine the HD with the superb surround sound, and it makes for great home theater, especially for films.
#2 - All the Voom exclusive channels with programming that benefits the most from HD: movies, world travel, music concerts, extreme sports, fashion, animation, etc. Eye candy!
#3 - NO TV COMMERCIALS on the Voom exclusive channels and on most premium movie channels. Well, there are commercials for their own programming and coming attractions -- all useful info. But there are no annoying fast food commercials, car commercials, medicine commercials, etc. etc.
There is indeed a lot of repetition of the programming. But we always find something great to watch.
Also, you can get spoiled. After you can watch a lot of Hi Def, you wonder how you ever enjoyed Lo Def.