Not really the iOS itself, that's basically just on personal taste since it works perfectly fine, and also is faster than Android in some cases.
But, will I pay a ton of money (from 729,00€ to 1059,00€) for a phone that bends just by staying into my jeans' side pocket, even tho it's faster than its Android counterpart? And, a product that is basically just a bit more performing than its older 5s version, that requires Apple's techs for every single maintenance issue, from a complex system reconfiguring to a basilar battery change?
You can guess the answer
But at the end of the day, buy whatever suits you more