Ive been using this handset for three years now it has been working perfectly. Its waterproof nature helped me in many cases though it doesnt support gyroscope and other sensors it covers it up with great features and camera and more over it has a pretty smooth batterylife.
For the first and second year it hasnt cause any glitches and problem but as u upgrade your android to marshmallow the phone gets slowed down a bit. Heating is a problem but its managable. For the money we pay to buy this phone its absolutely worth it. Motorola 3rd gen is one of the best phone ive handled