I phone has amazing sound reception quality it has the best sound quality compared to other phones.
Iphone are very easy to use as compared to other phones because of fingerprint sensor and many more features. As compared to other phone iphone 6s is best in terms of hang and lag.
Iphone 6s has a very cool design and available in different colors such as rose gold( unique in 6s only) then sliver etc.
iphone 6s includes some unique features such as 3D touch etc
one can easily reliable on the phone I have been using since one year and its durable too.
It is complete value of money you wont regret to have it.