Some might say it is an overpriced piece of glass and metal.
Others echo what Apple says: It is the best iPhone ever made.
I am somewhere in the middle. One can get all the cool smartphone features for ~ ₹30k ( e.g. OnePlus 3/3T) .
The premium price you pay for the latest iPhone gives you guaranteed software updates for minimum 3 years, awesome integration of software/hardware and tight integration within the Apple ecosystem.
Since, it is the current flagship iPhone it will still be blazing fast and get most ( if not all) of the software features when the next generation is released in fall 2017.
One of the best features in this years iPhone is that the home button is no longer a physical button - so it cannot break in the traditional sense.
Added water resistance is definitely a plus and something which was long overdue though I would recommend that one does not test it personally - if somehow water does enter the phones casing, Apple will consider it out of warranty. ( Out of warranty replacement costs ~ ₹25.5k for 128 GB iPhone)
Also, my iPhone did face an issue immediately after I upgraded to iOS 10.2 - the battery wouldnt charge. Apple Service centre replaced the phone as it was a hardware issue.
To save money, one can get the 32GB version ( it is plenty) or explore other options like the 6s or the SE.
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Thanks for reading and have a nice day : -)