SpaceX. I wouldn't want to be one of the first guinea pigs. NASA have gotten private companies to continue space travel to keep their astronauts in space and I think paying customers too. I think anyone paying to get on early flights would be nuts, I mean even NASA get it wrong, but they are absolutely meticulous with detail and won't fly if they're not happy with the tiniest issue. So would you trust a brand new private company to maintain the same level of detail and safety as NASA and to get you into space and back home without it blowing up?
http://www.bbc.co.uk/news/science-environment-13341469
http://www.bbc.co.uk/news/science-environment-13341292
http://www.bbc.co.uk/news/science-environment-13341469
http://www.bbc.co.uk/news/science-environment-13341292