This device is an amazing piece of work. The amount of time, effort, skill, engineering and re-engineering involved in this has been tremendous. I pray this mission is 100% successful -- the risks are great as are the potential rewards. Devices like this, NASA's Mars missions and other work are certainly a tribute to our intellect and tool-building abilities as a species.
It's ironic that science, for all its power and all it has done to better the human condition, still cannot answer the most basic questions of our existence: How did we get here? Where are we going? How long have we got?
Instruments like this can bring us closer to answering these thoughts that have stymied us since our race began.