I'm debating whether or not to get a universal remote to replace the however many I've got now. The Harmony 676 looks like the best bang for the buck right now, especially with the $50 rebate for Tivo owners that's going on right now. I haven't used a univeral remote in years, are these any good? Will they actually control all the devices and keep all the features? I don't want to lose any options by going with a universal remote. That would just make me dig out the original remote, which would make the universal remote a waste of time and money. Any feedback/experiences welcome.