Is the samsung galaxy S6 worth buying? Is it any good?

So tomorrow I m getting a new phone, I ve been wanting to try the S6 for a while now. I ve android phones before, so I d know the basics of how to use touchwhiz. What I need to know is is this phone good because I don t really want to spend over £500 on this if it s not any good. And don t just say that I should buy an iphone because I ve owned the 5s and the 6 and it was good at first but then it got boring since you can t really personalise your phone like I ve heard you can and the s6, but about 6 months in the phones started to lag and apps started to crash, so I m kind of put off using Apple phones. So should I buy the s6 or not?

Read more: Is the samsung galaxy S6 worth buying? Is it any good?