I'm not that impressed with Samsung. I have an s7 now, and once upon a time I had an earlier galaxy. In between I had Google Nexus phones, one from LG and I think one from HTC.
The Samsungs always have some kind of problem. Charging ports get loose, the bloatware they install makes me have to restart the phone. They look and feel great when you first get them because mostly they make the phone body out of "premium"material, but it's superficial.
I find core long term quality is just not there and in future I will probably avoid Samsung.
My s7 is OK, but my Nexus phones were better quality. Phone body may have been plastic but the phones were workhorses and never had problems.
As for the premium phone body it's fake. The paint scratches off the metal and around the charging port on my point is all dinged up from times when I wasn't too careful aiming the USB cable into the port (like plugging it in in the dark). Plastic cases don't have this problem and Samsung used cheap paint on the "premium" metal phone body.
Not impressed.