Hi , this is my personal opinion on 6s plus. It was the great device till 2016end. As the applw releasea ios 11 software update. Multiple iphones model got affected including iPhone 6s plus. It is a beautifully crafted device with the solid build quality as expected from the apple devices. There are multiple issues capture after the 11.3 update provided by apple. Major issue was battery drain percentage. Usually before the latest update phone lasts for a day. But after the update it hardly stays for 7-8 hours. Apple also agreed to this that battery of the iPhone got affected after the ios 11.3 and successor updates. Phone is perfect but the issues are coming from the software department.