After close to a week of usage:
Dual Sim:
Sim1: configured for 3g
Sim2: configured for 2g
Apps installed: Whatsapp, Facebook, Facebook Messnger, Ghostery, VLC, Google+
Email accounts accessed: Only Google, one ID
OOBE prompted for a ROM upgrade, upgrade succeeded.
Overheating issue persists, upon charging
Charges pretty fast, Turbo charger works, but discharges also very fast(battery life is not so good 100 to 90 percent after 30mins of browsing over wifi, sitting next to the router)
Occasionally freezes and you need to power off and restart(has happened twice so far)
Voice Quality IS WORST. the mic doesn’t seem to work, need to be always on a 3.5 mm headset for the others to hear my voice
Guess deep sleeps or dozes off permanently. Does not autosync whatsapp messages for an hour or more
Data connection keeps getting dropped on 3G(Confirmed not an SP issue. My other phone blazes on the same SP placed next to each other)
Pros:
Nice camera and good shots
Near Plain Vanilla Marshmallow, no bloatware
Good fingerprint sensor - pretty fast
Average display