I hope they've taken into account that most people might not be able to take the strain of travelling at such speeds and that solar power doesn't work at night, sounds like another bullshit advertisement campaign done by newspapers like Virgin's 'space plane' which doesn't actually go into space but exits the atmosphere for a few seconds before going down again, don't believe anything of what these people say until they have fully working prototypes and not just stupid 3D or 2D animation mock ups.
I know I sound very negative, but people like this really do make a mockery of science >_< particularly because when they finally make the real deal no one's going to believe the people who did actually figured it out.
Elon Musk makes a mockery of science? Even though he made electric cars mainstream and has the first private space program... Keep in mind pneumatic tubes already exist, they just need to be made bigger.