I'm a big fan of the Access Express, and have been taking it since it started. It's great value, and very competitive in terms of trip time -- certainly for anything on its path (Conrad, IC Strings/TB), but also, you can easily beat the limousine bus if your destination is e.g., GH, Andaz, or Westin. One negative I have noticed is that it's getting much more packed than it used to in the beginning. It wasn't uncommon to have less than a dozen riders in a compartment, and now by the end of the journey, usually all the seating is taken and there are some standees.