I have the Harmony 880 and the Harmony 890. I prefer the layout of these compared to the Harmony One, although it may be a personal preference and others may disagree. this remote is EASILY programmable with about 10 minutes of time. You can personalize it however you want and with just the push of a button, everything turns on as it should, settings go to the right place (like audio 1, 2, 3, dvd, whatever a receiver needs to be set to, etc.) I have this hooked up to tv, receiver, dvd, dvr, ipod, xm and it works perfectly. And everyone in my house, including occasional visitors can use it with ease as the icons are totally self explanatory. Push one button to watch DVR--it's done. Change your mind to watch DVD--DVR turns off, tv changes to appropriate video input, dvd turns on. Genius. If something ever goes wrong, you can just press the help button and it goes through a series of questions, diagnosis problem, and fixes it in usually less than a minute. I find that typically this would happen if you happen to press a command and then aim the remote away from the devices.After about 1 1/2 years of battery use, I had to replace the battery. not bad. Prior to replacing the battery, when the old battery wasn't holding a charge, the remote reset itself (my clue to get a new battery). I charged the battery. Plugged the remote, nervously into the computer (I had not remembered by username, password, settings, etc.) But alas, Harmony took care of that as well--it recognized my remote and reset it completely without me having to do anything but press a button.some people complained that the battery doesn't fit in the compartment securely enough and thus doesn't always charge. Simple solution, tear up a piece of paper, put it in between the battery and the back of the remote and no more problems. I hadn't really had problems to begin with but when my battery wasn't charging because of length of use, I did this to maximize any charge. I heard harmony will send a rubber piece to put in place but I never asked for one (it is suppose to be free).The difference between the 880 and 890 is that the 890 comes with the RF signal so that you can use the remote with hidden electronics. And the 880 is black and the 890 is silver. I prefer the black but it isn't a big deal either way.The 880 is currently at a fantastic price--even cheaper than the 880 refurbished. And it is worth every penny to get rid of all of those crazy remotes that you have to switch back and forth between to get anything done.And, my pet sitter is grateful for my remote because prior to getting this, she could never use my tv and electronics. I'm happy because my daughter isn't losing remotes since there is only one to keep up with. And I am thrilled with Harmony's easy interface as well as the ease of reprogramming if necessary.Really, do not hesitate to buy this, you won't regret it. And if you do, there is always the 30 day return policy-but after day 1 you will never give it another thought.Lastly, I prefer this to the 1000 because of the smaller size. Again, a personal preference.And one more thing--this is the perfect remote for gifts for parents who are finding that they enjoy DVR/DVD/TV but are overwhelmed with remembering what to do. Once my dad died, my mom had to have cheat sheets written down in order to operate everything--but even with that, there was reticence. With this there is no problem.