Keep in mind that there is currently no full adblocking solution on iOS.
There are some adblocking tools but non with proper cosmetic adblocking, meaning that you can not hide ads on social media platforms like facebook, Twitter, LinkedIn, reddit, Instagram, etc.
I am required to work with a current iphone for work reasons and I just made it a habit to never use it for content consumption because of that major flaw.
If that's not an issue for you (or you only use it for calling/texting anyway) I think it's a great device: fast, robustly built and nice to look at.