My initial reaction: pretty close to useless. It limits you to only the handful of corridors Metro is still studying. It doesn't let you chose modes -- they are either preselected (new light rail) or unspecified. Since Metro's definition of high capacity transit could include BRT, rapid streetcar, light rail or commuter rail, there will be differences between passengers served, capital cost and operating cost for each option. However, you aren't given a choice, and the capital costs, operating costs, etc. for each corridor are arbitrarily assigned.

I'm not sure what the value of this exercise is, when the only option for Wilsonville/Tualatin (for example) is "new light rail" as opposed to "cutting a deal with P&W to allow more frequent commuter train service throughout the day while shifting freight traffic to evening."

The feedback area was almost more interesting than using the applet. I repeated essentially what Douglas K said in his post for the last question about "other feedback."

I second Douglas K.'s comments - it's basically Metro's "Where do we want to put light rail" tool.

A better program would be to pick any two points in the region (not pre-selected corridors by Metro, but any two true points), and the tool estimate what the travel pattern would be between the two points to help determine what the best way to provide transit between those two points would be.