potash4 , Nov 18, 2015 : Just an update... I have been running my OPX now for a week and all in all it is quite solid, one issue i found with stock android using my Nexus 5 (Marshmallow) was the bluetooth connection would sometimes (normally on the initial dial) have masses of interference, i don't have this problem with the OPX so bonus.. I have so far found one issue with the OPX around bluetooth which i didn't get with lollipop or Marshmallow on the Nexus 5; when i connect via bluetooth to the car all is fine, when the contacts import it seems to pull contacts from god knows where and it also splits contacts down, so if i had Bob with three numbers and his email i get four entries on the car one for each, has anyone else seen this problem? The phone itself is very good, battery is good, i get around 1.5 days. The screen and voice clarity is also better than the Nexus 5 i had before. To be fair just one niggle for a new to market handset is very good going so hats off. I will update again soon.