As the title says, I'm mind blown by this pedal.
Pros:
The first day I've tried all of the 150 presets, they amazed me on how good they sounded. The clean/ambient/chill tones gave me goosebumps, the rock/rock&roll sounds sounded exactly like the one I was looking for for composing my own songs & doing covers, and the metal/distortion ones are pretty much the same ones as those used by the big bands. All of the presets have a name, so you don't have to memorize numbers (it also has some presets used in songs such as Enter Sandman and Come as You Are).
The pedal board is elegant, thin, easy to use and to navigate on (looper and all), and you can create your own presets (I also love the fact you can select reverb/delay on/off and play with it).
The second day I've plugged it in my computer, recognized it immediately, recorded something in audacity and it records perfectly. I also tried it with a virtual amp on my computer (since I don't have a real amp yet) and that also picks up amazing.
Cons:
Some presets (very few so I don't consider it a big deal) don't pick up on the whole vibration of the strings of the guitar and the sound stops way before they stop vibrating. Also, for some presets (again, very few) you can hear a hum/noise in the background but it's usually the distorted presets so it's normal since there is gain present.
I totally recommend it. I'm sure that, plugged in a real amp, it'd have even more potential than this, but for me it does the job perfectly at the moment.