I had been battling with my iPhone 6 Plus for sometime, the constant unresponsiveness of the touchscreen and grey screen flickering was troublesome. After weeks of this, it finally became completely unresponsive. Although all of the buttons worked. I set up an Apple Store appointment and I went in on Friday and I hope hoping that I just needed a new screen but apparently it was an internal issue that is unique to ONLY the iPhone 6 Plus. My phone was out of warranty so my only realistic option was to purchase the out of warranty replacement for ~$350. I did that, then over the weekend noticed that the same problem was occurring every so often. Today I went in and got another replacement. Hopefully this is the last one. While I was in the store, a lady overheard me talking to the Genius and told me that she was in the store for her 4th replacement iPhone 6 Plus. Has anyone else experience a similar problem?