I've used two older versions of Sonicare toothbrushes in the past and so this is my 3rd one. Why Sonicare as opposed to the competition? I prefer a larger brush head.Here's my cursory review of the flagship Sonicare model that comes bundled with all the extras:The Toothbrush:It works as expected. The number different brush settings is fine for those who would use it (I think those who are prone to be a bit more OCD would use all the settings), though I imagine a good 90% of the rest would just keep it on one setting for most of the time. The handle has a good weight to it, fits well in the hand, and generally brushes pretty darn well! The indicator light that blinks when you are applying too much pressure while brushing is at the end other end of the handle and therefore you'll never see it unless you're directly in front of the mirror. It would have been better if it made an audible sound in addition to the blinking lights.The bundleThe premium that you'd pay to buy the 9700 model is the travel case, the extra brush heads, and the training app.Now, I bought this model specifically because I was interested in the training app. So I'll write a bit about that here. It trains you on the basics on how to brush your teeth. It may be that you've been doing it somewhat incorrectly all your life and now here's your chance to have an app monitor your performance- how cool is that! Well, I used it and find that the app does help you with the basics of how long you should brush and which areas you may want to provide more brush coverage. These two factors alone should be enough to offset some of the other things that the app doesn't do quite as well in, right? Well, the app rather new and has enough bugs and other quirky things that make it rather annoying to use for more than just a week or so. In fact, I stopped using the app after about 10 days. I'm sure they will improve the app but for now, I'd hazard a guess and assume that most users will not continue using the app for more than just a few weeks at most. I hope they will improve the app as there's real promise it what it can potentially do. But for now, it has enough design and functional flaws that make it appear more like it's a beta release rather than a product I paid a premium for. I'm sure Philips will continue to improve the app so that it's more usable.The travel chargerThis was one of the other reasons I paid a premium to purchase this model. However, I must say that the Philips design team must have been asleep when they came up with the design for the charger. A travel charger is meant to be portable and lightweight. This monstrosity weighs three times more than it needs to, is super-bulky, and on top of that, the innards are totally closed in cheap plastic. So a product you'll put in your mouth that gets wet, you're supposed to then stick in a totally enclosed piece of heavy plastic and carry it with you while you travel- just how hygienic is that?? It has a built in charger and as of now, I'd rather carry around the equally poorly designed metal ring base to charge the unit while I travel. Neither of the two options are ideal of course and therefore I hope Philips will reconsider redesigning the terrible travel charger.Would I buy this product again?The answer is yes! I'm certain that Philips will continue to improve the app to make it more usable. Maybe with the next version, they willl have worked out the issues to make it more usable and useful for people to use for more than a week. Also, I hope they come out with a decent travel charging case that is 1) hygientic 2) lightweight 3) not bulky. But for now, it's still the best electric toothbrush around. 5 stars for the toothbrush and -1 star for the poorly designed travel charger and the beta version of the brushing app.