Oran already wrote about some of the ORCA and fare results, but those come from a Metro-commissioned survey of riders on the A line, for which you can read the summary or the full survey results. The press release indicates that weekday boardings have increased from 6,000 on the 174 to 7,500 on the nearly identically routed A Line. Metro doesn’t regularly release route ridership figures but Spring 2009 numbers are here.
I don’t know what there is to say except that people like it when service improves. I was somewhat amused that the most popular suggested improvement was “less fare enforcement,” above.