Update: I've now updated the quality rating as my first Launchpad had an issues with pads self-triggering after a month of use and my replacement has noticeable pads discoloration. It's still a great and compact device, when it works.
It's the largest of the launchpads, even though it's still smaller than e.g. Ableton Push. The pads are nicely responsive and the pressure curve immediately makes sense.
It seems like a 8x8 grid at first, but as you work more with it you start to appreciate the layout and the features. I got to the point where I haven't touched my keyboard at all because I could program both drums and synths on pads alone.
Novation seems to prioritize the Ableton Live crowd and as such the controller has lots of great features specifically tailored for Live. Nevertheless, it's a joy to hook it up to an iPad (and avail of the built-in 4-channel sequencer). It also works really good with Bitwig.