I have been personally using this phone for 4 months now, and through 2 updates, I can say that this phone is one of the best for 2013. I have experienced a few small slowdowns, but that was due to my abuse of the phone. The display is phenominal and more accurate than my 32" HDTV by Vizio, and in my opinion is a better choice than the galaxy s4. The build quality is unbelievably amazing, and the metal gives the phone an extremely premium feel. The galaxy s4 is plagued by slowdowns, and my girlfriend (7 month owner of the GS4) does give me some complaints about the phone. The speakers on this device are also extremely loud and clear, they can pump up without distortion. The included beats audio preset is good for those unaware on the methods of using an equalizer. This phone has many, many good qualities about it, and only one bad point. The phone's camera is excellent in photo quality, but due to the special UltraPixel camera, the resolution is only 4MP. The design allows more light to enter and better night photos, but in high digital zoom the pixel difference is noticeable from a galaxy s4 or LG G2. Battery Life There is a power saver mode that works extremely well. I can be using my phone for large portions of my day with it's power hungry LTE on all the time. With an app like Go Power Master as well switching modes based on your day, you can easily get 7+ hours of use. Stand by and light usage nets me over 14 hours. I typically use my phone for GOS navigation, video streaming, music, texting and facebook, and playing intense games like Dead Trigger. Display/Screen Quality The screen is full HD 1080p and an LCD. It runs to a viewable brightness at 100% in direct sunlight. The color reproduction is very accurate and not over saturated. There are apps to edit your screen calibration as well, but I am very satisfied with this screen. Call Quality The other side can hear only my voice and no ambient noise due to the superior noise cancelling mics. On a noisy talk filled bus, the person I'm calling can clearly hear me in a pretty high quality audio stream (with 2 or more bars of signal). Ease of Use It's android, it'll take you about 5 minutes to learn where stuff is, and everything is guided. Durability It's metal, it scratches with abuse, but stands up well to drops. The beats logo rubs away after 2 months partially. Design Design is sexy, bold, and quite attractive. Not much more to say.