I will share some good experience about the iphone 5s.I am still using it from last 1 year.One big thing in apple is that it is the one time investment.Once you get the iphone it stays forever until you damage it yourself.
Second best thing is that the service is best for the apple users .Any kind of problem you get the best and the fast service.
The most important thing is that you get the replacement if you have any internal or external damage.
That is what I love about apple.It has been a year now since I am using this phone .It still looks awesome.No bug and even I have never seen my phone get hanged up .This is best about iphone.Well there is some battery issue as my battery gets drained quickly but it is not the major problem.Even the smartphones battery doesn’t last longer and the battery issue would be overcomed with your iphone6 as it got the big mah battery and it will last longer.
I just want to complete by saying that an apple user is always an apple user .So it is always worth buying.