Pros: -Quick Charge 2.0 (some phones will not detect higher currents)
-Good simultaneous current
-$10 Cybermonday
-Stops charging when full (unlike some stock charger that won't stop, continuous beeping)

Cons: not free

Other Thoughts: -Tested across different devices simultaneously. LGG3, Note3 Galaxy S3, LGG4.
-6ft 24AWG and 20AWG cables no problem

Specs
-QC2.0: 5V2A 9V2A 12V1.5A
-VoltIQ (2ports) : 5V2.4A max
-VoltIQ (1port) : 5V4.8A max

Pros: It charges my HTC One M8 so fast and it even has 3 ports to charge. Definitely recommend!

Cons: Would've loved it even more if it came with 3 cables.

Pros: +Great build quality
+Compact and sleek design with non-intrusive LED
+Foldable plug for easy stow
+QuickCharge 2.0 port for very quick charging
+Smart ports for Apple compatibility

Cons: -QC port is not smart enough to detect Apple devices and only does 1A when I connect iPad Mini2 (just use the Smart port!)
-USB ports are upside down (now I'm nitpicking)

Other Thoughts: This is a very handy charger with excellent build quality. It has just the right number of ports for travel or even everyday use in a very compact size. The folding plug design is very nice and minimizes bulkiness making it easy to carry around or stow away. There's a very small nonintrusive LED indicator on the charger to show whether it's powered on or not.

I tested this charger with a Galaxy S6 and an iPad Mini2 and I'm happy to report it works as advertised. Here's more detail on the tests I've done.

Galaxy S6: QuickCharge port is almost 3 times faster than using the Smart port and charged 15% in 10 minutes.
1. QC port: 9.0V 1.8A, 16.2W
2. Smart port: 5.15V 1.05A, 5.4W
3. My other 5V 2A charger will do about 5V 1.6A, 8W. I saw it charges about 10% in 10 minutes.

iPad Mini2: Use the Smart port and get same OEM charger speed.
1. QC port: 5.12V 0.95A, 4.8W
2. Smart port: 5.1V 1.99A, 10.2W
3. Apple OEM charge also does 2A, same as the Smart port.

When charging devices that support QC make sure you use a data cable. Any good quality data cable will do. QC uses those data pins/wires to communicate between the supported device and the charger. If your device supports QC, the charger will raise the voltage to 9V to provide more power. If you use a charge-only cable, it'll do a regular 5V charging.

My phone does heat up quite a bit when doing Quick Charging, but it is very convenient for quick replenishment.
Apple devices works well on the Smart port pulling 2A from the charger as seen with my iPad.

Disclaimer: I received a sample for testing and my unbiased review.