I had a Nexus 6P that'd power down at 70% battery remaining, a Note 4 that stopped accepting input from the (undamaged as far as I could tell) screen, two other Samsungs with unreliable fingerprint readers, one of those also had a camera that stopped autofocusing and basically became useless. The Samsungs also had a myriad of charger issues from the phantom water detection to one that started getting super hot and melted a USB cable and nearly caught fire while mounted in my car.