I really wanted to like this phone, but after spending close to a month with it I can say I regret purchasing it.
iOS has not aged well and feels very backwards and stodgy compared to Android and Windows 10. The OS is filled with limitations that may have improved user experience in 2008 but feel absolutely archaic in 2017. I was shocked when I realized I couldn't purchase Audible audio books, Kindle books, and Vudu movies in their apps; I have to keep shortcuts to the websites for apps I have installed just to do basic things! I installed Outlook, which is very nice, but there's no way to set it as the default contacts, email, or calendar, which means that anything that integrates with those things, such as Siri, are completely useless. I can install Cortana, which is much more advanced than Siri, but I cant set Cortana to a shortcut or to be the default assistant. The OS is filled with aggravating limitations and restrictions that add up to feel like a middle finger to any user who wants an iPhone but doesn't want to completely switch everything in his or her life to the Apple ecosystem.
The limitations are bad enough but the terrible design makes it even worse. It seems like Apple has no vision for iOS; they just sort of pile new features and ideas on without ever stepping back to think about the whole. The result is a mess. Apple used to be really good about "the little things" and it seems like they've completely lost that. A couple of example. Force touch is a neat feature, except that it interferes with long-press. I had to look up how to delete apps because whenever I tried to long press an app icon it would force touch it. Apple overloaded a gesture and made something that was once simple totally confusing. It would be like adding pressure sensitivity to one of your mouse buttons - total confusion. Another example. iOS has this weird (and honestly pretty useless) widget and search page. It appears in 2 separate places in the OS. In the notification area and on the left most home screen. Why is it in 2 places? It makes no sense. There are just so many issues like this. The notifications are all chrome and no content and dismissing them takes 2 interactions when it takes one on every other platform. The settings app is a mess and some apps have their own settings. The OS has no global back button so you are always a little unsure how to get back. When apps have a back button they are on the upper left, exactly where you can't reach it. The list goes on, and on.
Overall I don't recommend this phone and wish I could return it. I kept thinking I'd get used to it or that it would grow on me, but I regret it. If you've ever used another mobile OS and/or you have no interest in switching everything over to Apple don't buy one of these.