Your experience was a breeze by comparison to many, so honestly I wouldnt have had any complaints if I had your experience.
If you really want to comnpare.
My S6 Edge last year began turnning itself off, force restarting or locking up and getting insansely hot and require a hard reset to turn off. Once turned off, it sometimes wouldnt turn back on again.
I contacted Samsung, they arranged a repair. 2 days later a courier shows up to collect, a week later after being in their authrosied service centre it is returned ... With a note saying no issue could be found.
I turned on the device, and within 5 minutes the phone was force restarting and going into bootloops.
I contacted Samsung again who appologised, and said they would arrange collection again.
5 days later and 4 calls later the courier finaly arrives to collect the device.
Another week later the device is returned with a new 'ribbon' installed to fix the issue. Within less than an hour of being on, the device was doing exactly the same thing. Exasperation began setting in.
Another call to Samsung, put on hold...... 40 minutes later, another apology. At this point I had documented the issue, made videos of the issue and what it was doing and the customer service rep told me that I would have to send to to the same repair centre, to include the video on USB stick and they would make a note. I asked for a replacement device. They said it was policy 'not' to offer replacements.
3 days later, courier collected. 2 days later the phone is returned 'sans' USB memory stick with a note that a new motherboard had been installed. Optimistically I turned on the device. Less than three hours later after charging the device repeated behaviour. Nothing had been fixed.
At this point I rang customer services and insited I get a replacement and was put on hold.
They then came back and told me NO. I could not get a replacement as it was not policy and it would have to be returned to the repair centre.
Nearly 4 weeks of ongoing repairs, frustration, phone calls and no working phone.
At this point I went onto Samsung Ireland's facebook page and posted ALL the documented evidence (repair notes saying device was perfect and passed testing) and videos of it crapping out. Within an hour of posting it I get a facebook messenger asking for my telephone number.
Samsung rang me and appologised, and said they would elevate this themselves (a seperate department) and that they would sort out a replacement phone for me, on one caveat ..... That they deleted the post on FB ....... Essentially the only way I got a working phone was through shaming and embarrasment.
No body should have to go through hell like that for a repair.
Samsung have a LONG way to go here anyway to reach any 'standard' of customer service. In fariness to the last guy who did help me, he was very understanding, but I was offered no compensation for my time wasted and frustration endured during the repair process, or missing USB sandisk flashdrive.
If i wasn't such a gadget horder, it would undoubtably have put me off buying any Samsung phones again. I still dread the though process of anything going wrong with them in the future though.