Most people here on the house (European Space Agency) are shrugging and saying "I'll believe it when I see it" as a response to the dates set by Musk.

It'll be interesting to see if he can do what NASA failed to achieve: Namely to successfully operate a "one vehicle to rule them all" concept that is both reusable and can both serve the interest of space exploration and also deploy satellites. This was after all what the Shuttle was meant to do.

My bet is on Elon to make it in the end, but probably 2-3 years after the dates, he sets. He seems to always be a bit late on his perhaps a bit over ambitious goals. But then again, I much rather see an ambitious goal be set that is achieved a bit later, than all the mumbling of "let's go to Mars sometime in the 2030s or 2040s!" (Under a President yet to be installed, and on a budget yet to be set...) So I'm all in on team Elon ^^