After months of waiting for Samsung's galaxy Note 4 Extra Battery Kit to come back in stock on Samsung's website so that I could use my 50% off coupon, I finally bit the bullet and bought it from Amazon. They currently have it in stock, shipped and sold by Amazon, for $34.99 (the best price I've seen yet). I had the extra battery kit for my Galaxy S5, and I absolutely loved it. It's great to have a spare battery and a good charger for it. The small plastic case for the spare battery is really nice too, especially if you're carrying it in a pocket or bag. Many people think cheaper third party batteries and chargers are the way to go because of the price, but in my experience it's usually not worth it. I've used third party batteries from just about every major manufacturer out there over the years, and the results have always been mixed. There are some decent third party battery manufacturers out there, but they almost never reach the quality and longevity of OEM batteries. And with external chargers, every third party one I've used has been incredibly slow. Samsung's unit charges significantly faster. For me, the price is completely worth it if you're a heavy user who likes having a spare battery. The fast charging does a lot to cut down on the need for a spare battery for many people, but for me I often need a spare battery. I'm often away from outlets for long periods of time, and when I am around one, I can't stayed tethered to it. External battery packs are great (and I own several), but they're not as practical or easy as a spare battery. Needless to say, I'm really looking forward to receiving this.