Samsung Note 4 issues

I have a Note4 tat i have been using for business. I ended up having a few issues with it toward the end if its warranty period which included the phone rebooting itself and switching off when there was about 38% battery left. I sent the phone in for repairs and apart from waiting ages for it to be returned,the unit came back with the same faults and a diagnose of no faults found i sent it back a nr of times and no joy. I received the phone back and on turning it on found that half the screen was not working Again back in for repair. Yhe screen was replaced, but after a couplr of days the screen became loose in its housing. I have sent it back 3 or 4times and it is still not fixed. I have taken a few months to draft this as i was going to ditch Samsung as a product,but I feel that the backup and service is terrible I still use the phone, but if anyone asks me if the product is worth looking at , I just open the cover and show them the loose screen. Very sad .