Just got Helix yesterday. It will take a while for me to get used to the new features, and the new remote, but I'm VERY disappointed regarding the features that are NOT on the remote (unless someone can help me out.).
I can fast forward a recording, but there is no longer a feature that allows me to fast forward 30 seconds at a time. This was VERY useful when watching recorded network TV shows, as I could skip through the commercials, know that they are usually 2 to 3 minutes long.