Been using since May, 32GB grey.
Smooth and responsive phone, with an always on touch activated fingerprint scanner which is fast and accurate and can unlock the phone without pressing down on any button. Very capable camera. Front facing speaker is a plus but could have been louder.
Only downsides are the screen (can't fight with branded flagships) and the partially broken NFC - Avoid for now if you read a lot of NFC cards with your phone, but no problems when using an external scanner to read your phone (eg. Android Pay). The vibration is powerful but loud when placed on a table.
Overall it's a great smartphone that got the fundamentals right.