Also, bear in mind it is a change of software, not an upgrade, you lose a lot more features than you gain, so it is probably worth looking into the differences before changing, as it is extremely difficult (if not impossible) to get the system switched back.
Some of the missing features are as follows; Wishlists (where you can set the box to record programs on certain subjects or featuring certain people), undelete, series link+, series link manager, suggestions, setting of series links for programs not in the current TV guide, ethernet control, keyboard support via USB, switching between tuners with constant buffering, skip-back on fast-forward, quickplay, cancelling individual recordings from a series link, multi-channel series links, radio channels allowing recording of radio, separation of recordings between boxes, watching recordings when internet is not available and probably a few others I've forgotten.
If it is just the (award-winning) remote you don't like, then you could just pick up a universal remote of some kind.
