I have a Kyocera now, but have had Motorola phones in the past. I never had a bit of trouble with them until they got dropped in water and died.
That's the main reason I bought the Kyocera; it's waterproof and shock resistant, and cheap enough that i don't have to worry about losing it.
It is a bit underpowered. It's responsive and fast, but if I'm listening to internet radio over wifi and playing it through bluetooth speakers and Google starts a download (which it seems to do daily) the damned thing reboots. Other than that I've had no complaints about it.
One brand of phone I'll never buy again is LG. It was a flip phone, and was 10 years ago. Most crash-prone, unreliable piece of shit I ever had. Sent it back under warrantee and the replacement was even worse. And ever since Sony deliberately infected my computer with their XCP rootkit I'll never ever buy anything from Sony again. Someone should have gone to prison over XCP.