That's exactly what I'm doing: watching, reading and learning before my Mavic unit even arrives.
I ordered my Mavic Pro on 1/5/17 and have been watching this forum since then to be as educated about the aircraft as I can be beforehand while I wait for it to be delivered. Been watching every video I can digest, too. I don't want any surprises in the sky that nature, circumstances, and my flight abilities will not already provide for me to deal with, on a moment-to-moment basis, while in flight.
To me, even though flying the Mavic has been made "easier" due to its incredible modes, abilities and interface, it is STILL an unmanned, potentially very fast and very dangerous vehicle, that must be kept under control at all times.
Like Superman's Marlon Brando father told him years ago, "With great power comes great responsibility." (Or was that Spider-Man's Uncle Ben? Hmmm...) To me, all drones of this caliber are quite powerful and need to be respected and treated accordingly, and that starts with understanding the craft and its systems intimately well in advance of taking it to the air. Power without control is not only bad, it's also dangerous.