Because my eyesight isn't as good as it used to be I bought the S8 plus nine months ago, and I must admit that it's a fine device and I have no regrets.
But if truth be told I do miss the replaceable battery, the flat screen, and most of all the plastic back cover. I had the S5 for a little over 3 years with a tempered glass screen protector and a silicone bumper on it, and it had not even the tiniest scratch when we parted.