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Pros
Pro Informative second screen
Additional smaller screen above the usual one, incredibly useful for multitasking, notifications, music controls. It also has an always on functionality with low power consumption thanks to the small size and separate backlight.
Pro Removeable battery and MicroSD slot
The rear cover can be removed to access an SD card slot and replaceable battery. This allows you to expand the storage capabilities of the device, and to swap batteries when you have no access to a charger for an extended time.
Pro High quality camera
The 16 megapixel rear camera takes photos that compete with the phones released spring 2016, despite being 6 months older. No phone camera from 2015 is superior, and only one or two can compete.
Pro 32 bit DAC
The digital audio converter on this phone is excellent, surpassing even the additional module that can be added to the LG G5 for a higher price, and it's built in. If you're an audiophile, or even just a regular Joe with really good headphones, you'll appreciate the quality of sound.
Pro IR Blaster
Control most tv's and more, easily with built in IR blaster.
Pro Wide-angle front camera
Dual front camera setup with a wide angle option for group photographs.
Pro Fingerprint scanner for security
On the rear power button is a nicely positioned fingerprint scanner that (after being updated) now is a quick and quality reader. Great for security and as an easy lock for your device.
Pro Durable construction
Steel side rails, a durable silicon/rubber back, and two layers of glass protecting the LCD display leave this phone as one of the most rugged competitors on the market, and one of very few that are certified to military drop test standards.
Pro Manual video recording controls
Fine tune your recordings with various adjustments before or during filming.
Cons
Con Battery life is average at best
For heavier users, this phone will struggle to last you through the day. It does help however, that the battery can be replaced at any time, unlike most competitors nowadays. Of course adding an extra battery will be at an extra cost to the user.
Con Large build
This phone is big. It has a 5.7" screen, then another 2.1" screen, then two lips. It has steel rail sides. It's big, and if you aren't sure, go to a store and hold it in your hand to get a feel before you buy.